Easy Pickled Red Onions

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How to make quick and easy pickled red onions in a jar. Gluten-free, vegan recipe, from scratch and so delicious!
Pickled red onions taste amazing, it’s the perfect hot weather condiment as far as I’m concerned. They are tangy with a little sweetness but with a mellow oniony flavor that is tamed by the zesty apple cider vinegar brine. The best!

How to Make Easy Pickled Red Onions

  1. Prepare the pickling mixture. Start with a boiling hot cup of water and whisk in the sugar and salt until dissolved. No need to turn on the stove for this one. Add the apple cider vinegar.
  2. Use a mandolin to thinly slice the red onion and pack inside a canning jar.
  3. Pour the pickling brine over the onions, cover with a lid and allow to cool at room temperature.
  4. Refrigerate for a couple of hours or overnight before serving.

Recipe Variations

  • Peppercorns. Most traditional pickling recipes contain some type of black or pink peppercorns. Feel free to sprinkle about 1 tablespoon in the jar.
  • Herbs. Fresh dill and dried bay leaves are another classic addition to brines. They would both be lovely here if you have them available.
  • Citrus. If you like you can entirely omit the vinegar and replace it with a fresh citrus juice made from a combinations of 1/3 cup orange juice + 1/4 cup freshly squeezed lime juice. Adjust to your taste from here. You can go for plain lime juice if you prefer an extra zesty brine.

About the Vinegar

  • Can you pickle red onions with white vinegar? Yes, I just prefer the apple cider vinegar flavor but white and even red wine vinegar will work just fine here if you like.
  • What else can i pickle using this quick brine? I’d suggest trying cornichons or any garden cucumbers you have available, radishes, sliced jalapeños, carrot, beets, rainbow cauliflower, peppers and even thinly sliced cabbage.
Easy Pickled Red Onions

Serving Suggestions / Uses

As a condiment to all your favorite dishes! From tacos to burritos, vegan carnitas, topping plant-based sausages and burgers, with a bowl of these pinto beans, over nachos or black bean soup, or chopped up and added to this amazing potato salad. Sprinkle a few on top of this tofu scramble & chickpea no tuna salad. Besides their lovely flavor they also add a beautiful touch of happy color to your meals. Aren’t they gorgeous?!

Apple cider vinegar pickled red onions.

Storage

You can store your onions in the same jar you pickled them in the refrigerator for up to 10 days, but let’s not kid ourselves since they won’t make it past day #3.

How to make quick and easy pickled red onions in a jar.

Quick and Easy Pickled Red Onions
5 from 3 votes

Easy Pickled Red Onions Recipe

How to make quick and easy pickled red onions in a jar. Gluten-free, vegan and so delicious!
Print Recipe
Prep Time:10 minutes
Total Time:10 minutes

Ingredients

  • 1 large red onion
  • 1 cup hot water
  • 1/2 cup +1 tbsp apple cider vinegar
  • 1 tbsp granulated sugar (or maple syrup)
  • 1.5 tsp sea salt

Instructions

  • Slice the onion into 1/8 inch thin slices. (This step is easiest done using a mandolin slicer). Stuff the onions in a canning jar or a glass container.
    1 large red onion
  • In a separate cup whisk together the hot water with the sugar and salt until dissolved. Stir in the apple cider vinegar.
    1 cup hot water, 1/2 cup +1 tbsp apple cider vinegar, 1 tbsp granulated sugar, 1.5 tsp sea salt
  • Pour the pickling mixture over the sliced onions, cover with a lid and allow to sit on the kitchen counter until completely cool. Transfer to the refrigerator overnight. Serve the next day.

Notes

Recipe Variations
 
  • Peppercorns - Most traditional pickling recipes contain some type of black or pink peppercorns. Feel free to sprinkle about 1 tablespoon in the jar.
  • Herbs - Fresh dill and dried bay leaves are another classic addition to brines. They would both be lovely here if you have them available.
 
  • Citrus -If you like you can entirely omit the vinegar and replace it with a fresh citrus juice made from a combinations of 1/3 cup orange juice + 1/4 cup freshly squeezed lime juice. Adjust to your taste from here. You can go for plain lime juice if you prefer an extra zesty brine.

Nutrition

Calories: 14kcal | Carbohydrates: 3g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 439mg | Potassium: 31mg | Fiber: 1g | Sugar: 2g | Vitamin C: 1mg | Calcium: 3mg | Iron: 1mg
Course: Condiment
Cuisine: European
Keyword: condiments, pickled onions, vegan,
Servings: 8 people
Calories: 14kcal
Author: Florentina

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7 Comments

  1. These pickled onions turned out perfect after only 2 hours in the fridge, we absolutely devoured the entire jar. So damn good, thanks for sharing.

  2. Believe me, this is a nice recipe unlike mine but yours sounds delightful I like the idea of apple cider vinegar, I will certainly try this tonight am planning burgers. It should be a good addition.
    Chef Ernesto`

  3. Very good recipe, added a pinch of crushed red pepper 🌶 flakes , thinly sliced garlic 🧄 and a few mustard seeds. Delicious:) Didn’t last long 🙂

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