White pasta sauce in glass jar without lid.

Homemade Alfredo Sauce

The best pasta sauce made with half and half, Parmesan cheese, garlic and butter. Perfect sauce with fettuccine pasta, chicken or white pizza!

Course Main Dish
Cuisine Italian
Keyword homemade Alfredo sauce
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 2 cups
Calories 562 kcal
Author Anna


  • 2 Tablespoons butter
  • 3 cloves garlic minced
  • 2 cups half and half a mixture of milk and cream; available in dairy section
  • 2 Tablespoons cornstarch
  • 1/4 teaspoon salt
  • 1/4 teaspoon ground black pepper
  • 1/2 teaspoon Italian seasoning
  • 1/4 teaspoon dried oregano
  • 1/2 cup grated Parmesan cheese
US Customary - Metric


  1. In a medium saucepan, melt butter over medium heat.
  2. Add minced garlic and saute until golden.
  3. In a mixing bowl, whisk together half and half, cornstarch, salt, pepper, Italian seasoning and oregano. Add mixture to sauteing garlic.
  4. Cook, stirring often until thick.
  5. Add Parmesan cheese and stir well.
  6. Remove from heat and use in pasta dish (see notes) OR cool to room temperature, pour into a jar and store in fridge for up to 3 days.

Recipe Video

Recipe Notes

Nutrition Facts
Homemade Alfredo Sauce
Amount Per Serving
Calories 562 Calories from Fat 414
% Daily Value*
Fat 46g71%
Saturated Fat 28g175%
Cholesterol 141mg47%
Sodium 873mg38%
Potassium 363mg10%
Carbohydrates 20g7%
Protein 17g34%
Vitamin A 1425IU29%
Vitamin C 3.5mg4%
Calcium 548mg55%
Iron 0.7mg4%
* Percent Daily Values are based on a 2000 calorie diet.