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+ servings
Two jars of pickled red onions on a wooden board.
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5 from 3 votes

Quick Pickled Red Onions

These quick and easy Pickled Red Onions are made with 4 simple ingredients. It’s a delicious topping for tacos, burgers, sandwiches and salads. This is the best way to make crisp, pickled onions made from scratch!
Prep Time7 mins
Cook Time3 mins
cooling time15 mins
Total Time25 mins
Course: Appetizer
Cuisine: American
Keyword: pickled red onions
Servings: 6 servings
Calories: 12kcal
Author: Anna


  • 1 large red onion
  • ½ cup white vinegar
  • ¼ cup water
  • 1 teaspoon sea salt
  • ½ teaspoon granulated sugar
  • 1 Bay leaf


  • Start by cutting off both ends of your red onion. Slice it in half and each half into half-circle, thin slices. Set aside.
  • In a 1-quart saucepan, mix vinegar, water, salt and sugar. Bring to a boil.
  • Add onion slices to the saucepan and simmer for 3 minutes. Stri often. At first you may need to press down on the onions to submerge them in the liquid.
  • After 3 minutes, remove the saucepan from heat and pour onions and liquid into a heat-proof bowl or cup. I used a 4-cup Pyrex glass measuring cup.
  • Add 3 ice cubes to cool the mixture down.
  • Place onions and liquid into a jar and cool completely before storing in the fridge.


  • Store your pickled red onions in a glass jar with a lid, in the fridge, and they will last up to 3 weeks
  • You can also add peppercorns, garlic, and mustard seeds to the mixture.
  • You can use white or yellow onions as well in this recipe.
  • Please note, that the nutrition value can vary depending on what product you use. The information below is an estimate. Always use calorie counter you are familiar with.


Calories: 12kcal | Carbohydrates: 2g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 389mg | Potassium: 27mg | Fiber: 1g | Sugar: 1g | Vitamin A: 1IU | Vitamin C: 1mg | Calcium: 6mg | Iron: 1mg