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Quick Pickled Red Onions

Sweet and sour Pickled Red Onions take any dish up a level — and I should know, I put them on everything! This simple recipe only needs thinly sliced onion and a few kitchen staples to make a pickling solution, then the refrigerator does the work while everything sits overnight.

Prep Time
5 mins
Cook Time
5 mins
Total Time
10 mins
Servings: 4 servings
Calories: 33 kcal
Course: Side Dish
Cuisine: American

Ingredients

  • 1 small red onion thinly sliced
  • ⅔ cup distilled white vinegar
  • ⅓ cup water
  • 1 ¼ tsp. salt
  • 1 Tbsp. sugar
  • pickling spice red pepper flakes, garlic, and/or dill, optional

Instructions

    Cup of Yum
  1. Add vinegar, water, salt, and sugar to a saucepan over high heat. Bring to a boil and then reduce heat to low. Simmer for 2-3 minutes, whisking occasionally, or until the salt and sugar have dissolved.
  2. Add the red onions to a 16-oz. mason jar along with pickling spice, red pepper flakes, garlic, and/or dill, if using.
  3. Pour the warm solution over the red onions and let cool to room temperature. If there is any space left in the jar, pour additional water in until it just reaches the top.
  4. Cover the jar with a lid and store in the refrigerator for at least 4 hours or up to overnight before enjoying.

Notes

  • Prep-Ahead: This recipe is best made ahead of time! You can make these pickles at least four hours or up to several days in advance.
  • Storage: The onions will last in the refrigerator in an airtight jar for up to 2 to 3 months. After about a month, they will lose some flavor.
  • Prep-Ahead: This recipe is best made ahead of time! You can make these pickles at least four hours or up to several days in advance.
  • Storage: The onions will last in the refrigerator in an airtight jar for up to 2 to 3 months. After about a month, they will lose some flavor.
  • Freezing: Place the pickled onions in a freezer-safe container. They will be good frozen for up to 6 to 8 months. Drain the pickling solution first, though.

Nutrition Information

Calories 33kcal (2%) Carbohydrates 6g (2%) Protein 0.3g (1%) Fat 0.04g (0%) Saturated Fat 0.01g (0%) Polyunsaturated Fat 0.01g Monounsaturated Fat 0.003g Sodium 600mg (25%) Potassium 41mg (1%) Fiber 0.5g (2%) Sugar 5g (10%) Vitamin A 1IU (0%) Vitamin C 2mg (2%) Calcium 10mg (1%) Iron 0.1mg (1%)

Nutrition Facts

Serving: 4servings

Amount Per Serving

Calories 33

% Daily Value*

Calories 33kcal 2%
Carbohydrates 6g 2%
Protein 0.3g 1%
Fat 0.04g 0%
Saturated Fat 0.01g 0%
Polyunsaturated Fat 0.01g 0%
Monounsaturated Fat 0.003g 0%
Sodium 600mg 25%
Potassium 41mg 1%
Fiber 0.5g 2%
Sugar 5g 10%
Vitamin A 1IU 0%
Vitamin C 2mg 2%
Calcium 10mg 1%
Iron 0.1mg 1%

* Percent Daily Values are based on a 2,000 calorie diet.