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A jar of quick-pickled red onions on a grey background with two red onions and a chili pepper in the background
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Quick Pickled Red Onions (ready in 30 minutes!)

These quick-pickled red onions are crisp, tangy, and perfectly spicy. Made with simple ingredients and ready in minutes, they’re a flavor-packed topping for tacos, burgers, salads, grain bowls, and more. This naturally low-sugar refrigerator pickle is easy to keep on hand and instantly brightens any meal.
Course condiment
Cuisine American
Diet Gluten Free, Vegan, Vegetarian
Keyword pickled onions, pickles, quick pickled, refrigerator pickles
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 12
Calories 23kcal

Ingredients

  • 2 cups red onion thinly sliced
  • ½ medium red chili thinly sliced
  • 2 teaspoons whole black peppercorns
  • ½ cup apple cider vinegar
  • ½ cup water
  • 2 Tablespoons sugar
  • ¼ teaspoon sea salt

Instructions

  • Thinly slice your red onions using a sharp knife or mandoline. Thinly slice the chili pepper.
    2 cups red onion, ½ medium red chili
  • Pack 2 cups of thinly sliced red onion, thinly sliced chili pepper, and black peppercorns into a wide-mouthed mason jar.
    2 cups red onion, ½ medium red chili , 2 teaspoons whole black peppercorns
  • In a small saucepan, combine apple cider vinegar, water, sea salt, and sugar.
    ½ cup apple cider vinegar, ½ cup water, 2 Tablespoons sugar, ¼ teaspoon sea salt
  • Heat the vinegar mixture over medium heat until the sugar has completely dissolved.
  • Carefully pour the hot vinegar mixture over the onions.
  • Press the onions down using a glass so they are fully submerged.
  • Set aside on the counter top to cool for 30-60 minutes.
  • Transfer the pickled onions and liquid into a container with a lid and keep in the fridge.

Notes

  • Nutrition values are an estimate only and is based on 12 servings.
  • Pickled red onion will last indefinitely in your fridge in an airtight container so long as the onion is submerged in liquid. 

Nutrition

Calories: 23kcal | Carbohydrates: 5g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 51mg | Potassium: 62mg | Fiber: 1g | Sugar: 3g | Vitamin A: 20IU | Vitamin C: 4.7mg | Calcium: 9mg | Iron: 0.2mg