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Pickled red onions in a mason jar

Quick and Easy Pickled Red Onions

  • Author: Liz Madsen
  • Total Time: 5 minutes
  • Yield: 16 servings 1x
  • Diet: Vegan


These quick and easy pickled red onions take about 5 minutes to make, 8-12 hours to cure, and provide you with a week of delicious toppings for salad, tacos, and more!

Vegan, Oil-Free, Gluten-Free, Nut-Free, Sugar-Free, Soy-Free


  • 1 small to medium red onion (can use other onions)
  • 3/4 cup apple cider vinegar (other vinegar will work)
  • 3/4 cup water
  • 1-1/2 tsp pickling salt (or kosher salt / sea salt)


  1. First, add the water and vinegar to a small sauce panย (I like using one with a spout) and turn the heat up to high.
  2. Slice your onion in half lengthwise, then peel off the outer skin. Slice the onion thinly, separating the slices and adding them to a mason jar.
  3. When the liquid in your pot has little bubbles, stir in the salt until it dissolves. Once the mixture comes to a boil, you can pour it over the onions.
  4. Depending on how big your onions are, you may have a little leftover liquid. Fill it to just below the brim and dump the rest.
  5. If you do not have enough liquid to cover the onions, try pushing them down with a spoon. If they still aren't covered, add a splash of vinegar.
  6. Let them cool until they're just warm, close the lid and place in the fridge. They should be cured in about 8-10 hours.
  • Cook Time: 5 minutes
  • Category: Ingredient
  • Method: Pickling
  • Cuisine: American

Keywords: Vegan, Oil-Free, Gluten-Free, Nut-Free, Sugar-Free, Soy-Free, pickling, Pickled Red Onion