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Quick and Easy Pickled Red Onions

Easy Pickled Red Onions

How to make quick and easy pickled red onions in a jar. Gluten-free, vegan and so delicious!
Course Condiment
Cuisine European
Keyword condiments, plant based, vegan,
Prep Time 10 minutes
Total Time 10 minutes
Servings 8 people
Calories 14kcal
Author Florentina


  • 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


  • Slice the onion into 1/8 inch thin slices. This is easiest done using a mandolin slicer.
  • Stuff the onions in a canning jar or a glass container.
  • In a separate cup whisk together the hot water with the sugar and salt until dissolved. Stir in the apple cider vinegar.
  • 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.


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.


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