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Bowl of bright pink red onions sitting in pickling liquid.

Pickled Red Onions

  • Author: Emily Wilson
  • Prep Time: 5 minutes
  • Cook Time: 5 minutes
  • Total Time: 10 minutes
  • Yield: 2 cups 1x
  • Category: Side Dish
  • Cuisine: American


Quick-pickling is easy and fun, while also adding so much flavor to a variety of vegetables.


  • 1 red onion, sliced
  • 1 cup apple cider vinegar
  • 1 cup water
  • 1/2 cup sugar
  • 2 teaspoon salt


  1. Measure the apple cider vinegar, water, sugar and salt into a medium saucepan. Set over high heat and bring to a boil until sugar and salt dissolve.
  2. Slice red onion and put in a heat-proof bowl. Pour pickling liquid over the red onions. Let rest at room temperature until cool, then transfer to a storage container and refrigerate.


Feel free to experiment with other vegetables. Asparagus, fennel, celery, jalapenos, etc. If you opt to try pickling fruit, let the pickling liquid cool completely before pouring it over delicate fruit like berries.

Keywords: pickled, red onions