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red onions and brine in a mason jar on a stainless steel counter

Pickled Red Onions

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This recipe for pickled onions uses a blend of red wine vinegar, apple cider vinegar, mustard seed and more to create a sweet, crunchy condiment reminiscent of bread and butter pickles.

  • Total Time: 1 hour 10 minutes
  • Yield: 1 pint 1x

Ingredients

Scale
  • 1 medium red onion, sliced into 1/8” half moons
  • 1 cup apple cider vinegar
  • 1/2 cup red wine vinegar
  • 1/2 cup granulated sugar
  • 2 tsp mustard seed
  • 1/2 tsp red pepper flakes
  • 1/8 tsp allspice
  • 1/8 tsp ground cloves (or 2 whole cloves)
  • 1/8 tsp ground turmeric

Instructions

  1. In a medium saucepan over medium-high heat, bring the apple cider vinegar, red wine vinegar and granulated sugar to a boil, whisking to dissolve the sugar.
  2. Remove from heat
  3. Stir in the mustard seed, red pepper flakes, allspice, cloves and turmeric. 
  4. Add the sliced onions and stir gently to coat.
  5. Cool to room temperature, then transfer to a 1 pint (16 oz) mason jar or other food-safe, airtight container that can handle acidic foods.
  6. Ready to eat when chilled thoroughly. Store in the refrigerator for up to 3 weeks.*

Notes

*Refrigerator pickled red onions, which are quick-pickled in vinegar and stored in the fridge without a full canning process, should ideally be consumed within three weeks for optimal flavor and texture. However, they may still be safe to eat for up to 1-2 months, as long as they’ve been kept refrigerated and there’s no signs of spoilage such as a foul smell, change in texture, or mold.

  • Author: Cori (Sarah) Dyer
  • Prep Time: 10 minutes
  • Cook Time: 1 hour
  • Category: Condiment
  • Method: Stove
  • Diet: Vegan