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    You are here: Crunchy Creamy Sweet / Dessert / Triple Chocolate Mousse Cake

    Triple Chocolate Mousse Cake

    Published: Feb 12, 2013 · Modified: Jul 24, 2019 by Anna 69 Comments · This post may contain affiliate links.

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    Triple chocolate mousse cake - the one and only dessert for a true chocolate lover. The perfect showstopper for a special occasion.

    If you love mousse desserts, you may also like my Chocolate Mousse For Two recipe as well as the Pumpkin Mousse Pie.

    Side shot of a slice of triple chocolate mousse cake on glass plate.

    TRIPLE CHOCOLATE MOUSSE CAKE

    Do you see that slice up there? This is the ultimate chocolate dessert. Not only it's triple chocolate but it is made of layers of mousse. Creamy mousse, that melts in your mouth and transfers you into sweet bliss. I had this Triple Chocolate Mousse Cake on my to-make list for so long and it finally happened! We just love desserts with sweet mousse! My Pumpkin Mousse Pie is my go-to for Thanksgiving dinner.

    Triple Chocolate Mousse Cake Ingredients:

    • butter
    • bitter-sweet chocolate
    • espresso powder
    • vanilla extract
    • 4 eggs
    • salt
    • brown sugar
    • cocoa powder
    • water
    • semi-sweet chocolate
    • 3 cups whipping cream
    • granulated sugar
    • powdered gelatin
    • white chocolate
    Side shot of mousse cake on cake stand.

    How long does it take to make this cake?

    It is also the most labor-intense dessert I have ever made. It can take up to 2 days to make it, only if you decide though. You can make it all in one day if you start early in the morning. But it's crucial to let every layer set before adding the next one. It is important to read the instructions before proceeding. You need to plan well when making this cake. You need to be patient and gentle. Lots of love goes into making this cake. And that's also why it's so rewarding in the end.

    How does it taste?

    You may think it's utterly rich. Well, it is in texture but because of it's made of chocolate mousse - it's airy and light. And that makes it incredibly easy to eat.

    Slice of Triple Chocolate Mousse Cake.

    MORE MOUSSE RECIPES:

    • Chocolate Mousse For Two
    • Peanut Butter Mousse Chocolate Cake
    • Pumpkin Mousse Pie
    • Pumpkin Lush Dessert
    • No-Bake Peanut Butter Cheesecake
    Slice of Triple Chocolate Mousse Cake.

    Triple Chocolate Mousse Cake

    Author: Anna
    The most impressive and decadent of all chocolate cakes. Light and airy in texture and not-overly-sweet in taste. Pure sweet bliss!
    5 from 32 votes
    Print Recipe Pin Recipe
    Prep Time 6 hrs
    Cook Time 18 mins
    Total Time 6 hrs 18 mins
    Course Dessert
    Cuisine American
    Servings 8 people
    Calories 554 kcal

    Ingredients
     
     

    1st layer:

    • 6 Tbsp butter cubed
    • 7 oz bittersweet chocolate chopped
    • 3/4 tsp espresso powder
    • 1.5 tsp vanilla extract
    • 4 eggs
    • 1/8 tsp salt
    • 1/3 cup packed brown sugar I used dark

    2nd layer:

    • 2 Tbsp unsweetened cocoa powder
    • 5 Tbsp hot water
    • 7 oz semi-sweet chocolate chopped
    • 1.5 cup cold heavy whipping cream
    • 1 Tbsp granulated sugar
    • 1/8 tsp salt

    3rd layer:

    • 3/4 tsp powdered gelatin
    • 1 Tbsp water
    • 6 oz white chocolate chopped
    • 1.5 cup cold heavy whipping cream

    Instructions
     

    First Layer:

    • Preheat your oven to 325 degrees F.
    • Butter a 9" round springform pan. Set aside.
    • Separate egg yolks and whites. Set aside.
    • In a double boiler, melt chocolate, butter and espresso powder, whisking until smooth. Cool slightly for 5 minutes.
    • Add egg yolks and vanilla extract and whisk until well combined.
    • In a large mixing bowl of a stand mixer, whip egg whites with salt for 30 seconds, or until frothy. Add half of the brown sugar, sprinkling it over the frothy whites. When the sugar is well mixed in, add the remaining half. Whip until soft peaks form. It can take from 1 to 3 minutes. Keep checking your peaks.
    • Whisk in 1/3 of whipped whites to chocolate mixture. Do not whisk vigorously. Be gentle. Whisk just until the mixture lightens in color. Switch to a rubber spatula and gently fold in the rest of whites, until no streaks remain.
    • Carefully pour the chocolate mixture into prepared pan. Smooth the top out.
    • Bake the cake for 15 to 18 minutes ( center should spring back when gently pressed ).
    • Leave the cake in the springform and cool completely, at least 1 hour. It will collapse. You can cover cooled cake and refrigerate overnight.

    Second layer:

    • In a small bowl, mix together cocoa powder and hot water. Set aside to cool slightly.
    • In a double boiler, melt chocolate. Cool 3 to 5 minutes.
    • In a large mixing bowl of a stand mixer, whip cream, sugar and salt at medium speed. Whip for 30 seconds. It should slightly thicken. Increase the speed to high and whip the cream until soft peaks form. It should happen quite fast ( 20 to 30 seconds ) so do not walk away. Set aside.
    • Whisk cocoa powder mixture with melted chocolate until smooth. At first it will look like your chocolate seized but keep whisking. It will come back together and be smooth.
    • With whisk, fold in 1/3 of the whipped cream into chocolate mixture to lighten it. Switch to a rubber spatula and gently fold in the rest of the whipped cream, until no streaks remain. It is important or the mousse won't set right.
    • Spoon the mousse over cooled cake layer. Tap the form on your countertop 3 times to get rid of any air bubbles. Smooth the top with a spatula. Wipe the inside of the pan with a paper towel from any mousse smudges. Refrigerate the cake for at least 15 minutes so the mousse can set.

    Third Layer:

    • Sprinkle gelatin over water in a small bowl. Quickly stir with a small spoon. Set aside.
    • Place white chocolate in a large mixing bowl.
    • In a small saucepan, heat up only 1/2 cup of cream until boiling. Remove from heat. Add gelatin and stir until completely dissolved.
    • Pour the cream and gelatin mixture over white chocolate. Let sit for 20 to 30 seconds, then whisk until smooth. Set aside to cool to room temperature. Stir occasionally. It should slightly thicken.
    • Whip the remaining cream at medium speed for 30 seconds. Increase the speed to high and whip until soft peaks form, about 15 to 20 seconds.
    • With whisk, fold in 1/3 of the whipped cream to chocolate mixture. Do not whisk vigorously. Gently, until all smooth. Switch to a rubber spatula and fold in the rest of the whipped cream into your chocolate mixture, until no streaks remain.
    • Spoon the white chocolate mousse over the semi-sweet chocolate mousse. Smooth the top out.
    • Chill the cake for at least 2,5 hours.
    • When ready to serve, run the knife around the cake in the pan. Remove sides of the springform.
    • For clean cuts, use dental floss or warm but dry knife.
    • Decorate slices with chocolate curls. Serve.

    Notes

    Please read the instructions before proceeding. It is important to plan well when making the cake. You cannot speed up any process. Every layer has to set. Be gentle when folding the whipped cream into chocolate mixtures. Whisk gently. It is important to fold in until no streaks remain for the proper setting of the mousse. Take your time - this cake is worth it.

    Nutrition

    Calories: 554kcal | Carbohydrates: 50g | Protein: 7g | Fat: 36g | Saturated Fat: 21g | Cholesterol: 112mg | Sodium: 208mg | Potassium: 405mg | Fiber: 4g | Sugar: 41g | Vitamin A: 415IU | Vitamin C: 0.1mg | Calcium: 97mg | Iron: 3.8mg
    Tried this recipe?Leave a comment with rating below!

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    Reader Interactions

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      Recipe Rating




    1. Crystal Reed says

      July 31, 2019 at 1:01 pm

      5 stars
      I have made this so many times now, I have lost count. If youd like a recipe to impress...make this one!

      Reply
      • Anna says

        August 05, 2019 at 11:51 am

        That's wonderful! Thank you so much, Crystal!

        Reply
    2. May says

      February 15, 2019 at 2:13 am

      5 stars
      The cake turned out to be great and delicious ...it was worth the effort..everyone liked it especially my kids....and shall i say many reached out for a second and third piece 🙂

      Reply
      • Anna@CrunchyCreamySweet says

        February 15, 2019 at 2:42 pm

        Thank you so much, May! I am so glad it was a hit!

        Reply
    3. Rachel says

      February 10, 2017 at 4:00 pm

      5 stars
      I can't seem to find the recipe for this cake, even clicking on the link on this page for it. I don't know if it's just me or if it somehow got delete. Can you help me with that? Thanks!

      Reply
      • Anna@CrunchyCreamySweet says

        February 10, 2017 at 6:08 pm

        Hi Rachel! I am so sorry about that! We are switching to a new recipe plugin and some recipes are not showing up. I just fixed this one! You should be able to see and print the recipe now. Let me know if there is anything else I can help with! Have a beautiful weekend! -Anna

        Reply
    4. serene says

      August 18, 2014 at 8:22 pm

      5 stars
      Hi awesome cake! But how Can I adjust the ingrediants into an 8 inch cake?

      Reply
    5. alyssa says

      August 18, 2014 at 8:11 pm

      5 stars
      Nice cake and I am going to make it. But may I ask how do you chill the cake and can I put it overnight and serve it like tomorrow. And well is it possible to decorate the cake before serving it? (Not yet sliced) thanks in advance!

      Reply
    6. Thuy says

      May 02, 2014 at 4:23 pm

      I tried making the first layer, and when it cooled, it collapsed like you said. But, even the sides did as well so they are no longer touching the sides of the pan. I imagine this might be a problem; how might I fix this?

      Reply
    7. Rabia says

      May 02, 2014 at 11:16 am

      5 stars
      Just refrigerated this awesome cake...i hope it comes out the same as in the photos above...made it for my son's bday tomorrow...keeping my fingers crossed!

      Reply
    8. Kiks says

      March 27, 2014 at 11:15 pm

      5 stars
      The 1st layer just got out of the oven, and i just finished mixing the 2nd layer as well is it still usable after 1hr after the 1st layer has cooled and set?

      Reply
    9. Allie says

      March 08, 2014 at 10:15 pm

      5 stars
      How did you cover the remainder of the cake when stored back in the fridge? Want to eat little by little without the fridge spoiling it, or without ruining the cake trying to properly cover it. Thanks!

      Reply
      • CrunchyCreamySw says

        March 08, 2014 at 10:58 pm

        Hi Allie! Thank you so much for the comment! If you don't have a cake stand with a cloche or a cake carrier than you can insert few toothpicks in the cake and then cover it with a saran wrap. The toothpicks will keep it from sticking to the cake. Hope this helps!

        Reply
    10. CrunchyCreamySw says

      February 12, 2014 at 10:55 pm

      I am so happy to hear that, Sheena! Please, let me know how it goes! Thank you!

      Reply
    11. CrunchyCreamySw says

      January 09, 2014 at 7:46 pm

      I will try and post the measurements.

      Reply
    12. CrunchyCreamySw says

      January 09, 2014 at 7:43 pm

      Hi Carla! First of all, you are not an idiot. This cake is not easy to make. If you are having problems with the first layer - I think the problem is in how long you whip the egg whites. It should collapse after baking but should not be "as thin as a pancake". Did you follow the instructions on whipping the whites?

      Reply
    13. tif says

      November 06, 2013 at 11:53 pm

      5 stars
      hi good day 🙂 i already made the baked layer now moving to the second hehe was wondering when you say. 1 1/2 heavy whipping cream does that mean 1 1/2 already whipped cream? or not yet whipped? thanks 🙂

      Reply
      • CrunchyCreamySw says

        January 09, 2014 at 7:46 pm

        not yet whipped

        Reply
    14. Amenah says

      October 13, 2013 at 11:48 am

      5 stars
      I made this cake, i think it was the best chocolate cake ive ever had! Thanks for the recipe! Although for some reason i felt my cake turned out a little too dense. Also, Do u think next time for the chocolate mousse i can use milk chocolate instead of semi sweet?

      Reply
      • CrunchyCreamySw says

        January 09, 2014 at 7:47 pm

        I totally would! You can just make that one layer with the milk chocolate and see if you like it!

        Reply
    15. Lucas Joseph McCullum says

      September 23, 2013 at 6:07 pm

      5 stars
      I just made the cake however I missed the part to add the remaining egg whites. Not knowing this I mixed in an extra egg white before baking. I hope this wouldnt affect it too much. It seemed the first layer was heavier than the others. Secondly on the last set of instructions for the third layer, I saw it says add part of the heavy whipping cream, then the rest. After which it says add whipping cream, I didnt quite understand this however I added the remaining whipping cream, folded it as directed it and poured it over the top. Does this sound about right? I really hope it turns out well!

      Reply
    16. CrunchyCreamySw says

      August 23, 2013 at 9:16 am

      I haven't tried it in a mini cheesecake pan so I can't tell you if the ratios would be correct... Sorry.... Let me know if you try it!

      Reply
    17. CathyP says

      August 11, 2013 at 10:41 pm

      5 stars
      I just finished making this cake this morning and took it to a friends tonight for dinner. It was wonderful and everyone loved it. Well worth the time and I will make it again. Thank you for sharing. 🙂

      Reply
      • CrunchyCreamySw says

        August 23, 2013 at 9:14 am

        I am so happy you gave it a try and everyone enjoyed it! Thank you, Cathy!

        Reply
    18. MsEarth Rullan says

      August 11, 2013 at 9:06 pm

      5 stars
      Thanks for sharing this ! I'm gonna make one soon!

      Reply
    19. Ronika says

      August 07, 2013 at 8:16 pm

      5 stars
      Ok, I just made this for the 2nd time... The first time I took it to work (that's where I take all my test recipes..LOL.. ) and they ABSOLUTELY LOVE IT.. I must admit.. I only thought it was OK (don't really care for bitter chocolate)... but they raved about it so much.. a Girl who is leaving requested it before she left.. so Here I am.. making it for her!... Thanks.. it looks So good.. and I hope they enjoy it as much as they did the first time!!!

      Reply
      • CrunchyCreamySw says

        August 23, 2013 at 9:15 am

        lol I love it! This cake is just irresistible! Thanks, Ronika!

        Reply
    20. Hesitantbaker says

      August 06, 2013 at 2:42 pm

      5 stars
      I am a completely new baker and LOVE the pictures and look of this entire cake. Would the difficulty be too hard for me if I have never made a cake and would like to surprise someone for their birthday in two days with this?

      Reply
      • CrunchyCreamySw says

        August 06, 2013 at 3:08 pm

        Hi! Thank you so much for the lovely comment. 🙂 I have to tell you, this cake is very labor intensive. It doesn't really require much baking (only the first layer) but it would be great if you had an experience whipping up whites and cream to soft peaks... I would say: if you can totally devote time to it without distractions, you can give it a go. I hope my instructions will help along the way. Either way, let me know what you decide! Thank you!

        Reply
    21. Jay says

      July 19, 2013 at 9:28 am

      5 stars
      Beautiful, beautiful, beautiful...raised to the power of N. it's my bestie's birthday tomorrow, and I stumbled upon your recipe. I started making it since last night, just done the final layer now and cannot wait to see the excitement on my friend's face tomorrow... Thank you Anna for brightening up my day and doing the same for my friend tomorrow... My fingers are crossed. Keep it coming, appreciate it.

      Reply
      • CrunchyCreamySw says

        August 06, 2013 at 3:04 pm

        I love your comment, Jay! I hope the cake turned out and you both loved it! Let me know! Thank you!

        Reply
    22. Rajani says

      July 14, 2013 at 12:54 pm

      5 stars
      Hi. I totally love your patience and dedication at making this triple layered cake for your special person! I am in the process of creating a similar triple layered cake for my hubby's birthday - and all eggless and gelatin-free (used china grass instead). Crossing my fingers and waiting to unmould tomorrow.
      Your tips to get the layers right were so useful to me. Much thanks.
      Rajani.

      Reply
      • CrunchyCreamySw says

        July 15, 2013 at 8:37 am

        So glad I could help, Rajani! Thank you!

        Reply
    23. shadow1760 says

      June 28, 2013 at 7:12 pm

      5 stars
      i've made this desert several times and everytime it has been a huge success. A definite crowd pleaser with a great big wow factor. it looks as pretty as it taste. Rich but light and airy. definitely a project that takes me one night to put together and we enjoy it the next day. I take the extra step of lining the sides with parchment paper which adds a little height to the sides so that it comes apart from the pan very easily and I can fit all the filling in my springform pan that way too. most pans are just under 3 inches high. If you have a pan at least 3 inches high then you're OK. I use craft wire to cut the cake. I used Ghirardelli chocolate and added a little bit of stabilizer to the white mousse 2 give it an extra airiness and stiffness.

      Reply
      • CrunchyCreamySw says

        July 15, 2013 at 8:37 am

        Thank you!

        Reply
      • Amanda says

        November 26, 2014 at 5:51 pm

        5 stars
        Parchment paper! What a great idea for easy pan removal. Also thanks for mentioning the pan height in your comment. Made this for the first time today. I only have small cake pans, about 2 inches high. Oops. Definitely couldn't fit the 3rd layer so I've put it into another cake pan. Crossing my fingers that I can fit it with the other layers later

        Reply
        • Amanda says

          November 26, 2014 at 6:09 pm

          I Should mention that I'm new to cakes and missed the springform pan reference in the beginning of the instructions. **Anna maybe add a Material section to the recipe card for us newbies? Either way I learned my lesson and will be investing in the right pan, because I will definitely be making this again.

          Reply
          • Anna@CrunchyCreamySweet says

            November 26, 2014 at 10:35 pm

            Hi Amanda! Thank you for the suggestion! I love it! I am so glad you tried the recipe! Thank you for the comment!

            Reply
    24. Paula says

      February 20, 2013 at 4:55 pm

      5 stars
      What I like most about this cake is that the three layers unite as one. I usually see some sort of separation between them that seems artificial. This is gorgeous Anna, and doesn´t take longer than many breads I make!

      Reply
    25. Nancy says

      February 18, 2013 at 3:25 pm

      5 stars
      Holy crow, Anna - this is divine! Your photos are gorgeous and I can't get over how perfect, creamy, luscious and decadent this cake is. What a labour of love - I hope you got to enjoy every single mouthful of this stunner.

      Reply
    26. Anita at Hungry Couple says

      February 16, 2013 at 12:44 am

      5 stars
      Beyond gorgeous!!

      Reply
    27. CrunchyCreamySw says

      February 14, 2013 at 11:53 am

      It is a must-make for sure 🙂 Thanks, Minnie!

      Reply
    28. Carol | a cup of mascarpone says

      February 14, 2013 at 8:32 am

      5 stars
      Anna, this looks exceptional! Absolutely lovely! Happy Valentine's Day!

      Reply
      • CrunchyCreamySw says

        February 14, 2013 at 11:54 am

        Happy Valentine's Day to you too, Carol! Thank you!

        Reply
    29. Heather Geddert says

      February 14, 2013 at 12:57 am

      5 stars
      in the first layer, when do you add the remaining 1/2 of the brown sugar...?

      Reply
      • CrunchyCreamySw says

        February 14, 2013 at 9:03 am

        Hi Heather! Add the remaining brown sugar after the first half of it is mixed in. Thank you for your question!

        Reply
    30. Amanda @ Once Upon a Recipe says

      February 14, 2013 at 12:43 am

      5 stars
      Wow, this looks incredible! So chocolately and decadent!

      Reply
      • CrunchyCreamySw says

        February 14, 2013 at 11:53 am

        Yay! Thanks so much, Amanda!

        Reply
    31. Savory Simple says

      February 13, 2013 at 8:26 am

      5 stars
      I'm in love with this gorgeous cake!

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 10:51 am

        Juts wait till you try it! Pure heaven! Thanks, Jen 🙂

        Reply
    32. Sandra Garth says

      February 13, 2013 at 7:31 am

      5 stars
      Oh my gosh Anna, you're making me crazy with all of these tempting desserts. Each day is a party for my eyes!

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 10:51 am

        lol Mission accomplished then 🙂 Thanks, Sandra!

        Reply
    33. gerryspeirs says

      February 13, 2013 at 12:55 am

      5 stars
      Major kudos for taking this on and making it look so amazing!! Choco heaven...

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 11:01 am

        I've always wanted to try it. So glad I did 🙂 It's amazing! Thanks, Gerry!

        Reply
    34. greensnchocolate says

      February 12, 2013 at 9:38 pm

      5 stars
      Oh my - those pictures!!! Absolutely gorgeous. What a perfect Valentine's Day dessert!

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 11:01 am

        Aww, thank you so much! 🙂

        Reply
    35. Lizzy Do says

      February 12, 2013 at 7:58 pm

      5 stars
      I've made this stunner a couple of times! Everyone always licks their plate clean!!! Your slice is picture perfect, Anna!

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 11:03 am

        I've had it on my to-make list since I saw it on your blog! It truly is amazing! 🙂 Thank you so much, Lizzy!

        Reply
    36. Anne B says

      February 12, 2013 at 6:40 pm

      5 stars
      Well my friend, you are definitely getting 'ooohs and aaahhhs' from me because this dessert is stunning. I can only imagine how sweet, luscious and light it is. And again....those pictures are just beautiful! Beautiful! : )

      Reply
      • CrunchyCreamySw says

        February 13, 2013 at 11:03 am

        Oooh, I do hope you will make it. I just know you will love it, Anne! Thank you so much for your kind words about my photos. 🙂 xoxo

        Reply
    37. CrunchyCreamySw says

      February 12, 2013 at 4:56 pm

      Awww, you are such a sweetie, Sally 🙂 Thank you! This cake is as amazing as it looks! You need to try it!

      Reply
    38. a farmer in the dell says

      February 12, 2013 at 12:58 pm

      5 stars
      I'm armed with a fork, a double espresso, and now all I need is a way to reach through my computer screen and take a bite of that lovely cake!

      Reply
      • CrunchyCreamySw says

        February 12, 2013 at 4:56 pm

        lol Wish you could come over and join me 🙂 Thanks!

        Reply

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