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–+ servings
Overhead of pickled red onions in mason jar with fork picking some up.
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How to Make Pickled Red Onions

Pickled red onions add a tangy and yummy flavor to your favorite salad, sandwich, or wrap. Easy to make a batch to keep on hand at all times!
Course Appetizer, Salad, Side Dish, Snack
Cuisine American
Diet Diabetic, Gluten Free, Low Fat, Low Lactose, Low Salt, Vegetarian
Prep Time 5 minutes
Cook Time 10 minutes
Marinating time 30 minutes
Total Time 45 minutes
Servings 8 servings
Calories 18.38kcal
Author Tina

Equipment

Ingredients

  • 1 large red onion sliced extra thin
  • ¾ cup apple cider vinegar may substitute with white vinegar
  • 1 teaspoon salt
  • 1 tablespoon sugar
  • 1 teaspoon black peppercorns
  • 2 jalapeno peppers may substitute with serrano or habanero
US Customary - Metric

Instructions

  • Pour the apple cider vinegar into a medium saucepan over medium heat.
    pour the vinegar in the pot
  • Add in the salt and sugar.
    Add sugar and salt to the vinegar.
  • Stir the salt and sugar until it is dissolved.
    stir, heat, and dissolve
  • Cook until the vinegar mixture is just heated. There is no need to bring to a boil.
    heat until everything dissolves
  • Slice the red onions very thin using a chef's knife or mandoline. Put in a large bowl and add in the black peppercorns.
    add the black peppercorns
  • Pour the hot vinegar mixture over the onion mixture. Allow to sit for 30 minutes before serving.
    pour hot vinegar mixture over vegetables
  • Add the onion mixture to an airtight container or jar with a pair of tongs.
    put onions in jar with vinegar to marinate
  • Cover the onions with the remaining vinegar mixture. If it does not cover the onions completely, add more vinegar or water to cover it before refrigerating.
    red onions in jar
  • These pickled red onions can be kept in the refrigerator for up to three weeks. These can be frozen in portions in freezer bags for up to three months.

Notes

If you don't want to bring the vinegar mixture to a boil, you can add everything to the onions in a jar.
Heating the vinegar mixture softens the onions and allows the vinegar mixture to penetrate quickly. It also allows you to keep them longer.
You can add garlic, hot red pepper flakes, and any fresh herbs for different flavors.

Nutrition

Serving: 1serving | Calories: 18.38kcal | Carbohydrates: 3.56g | Protein: 0.24g | Fat: 0.05g | Saturated Fat: 0.02g | Polyunsaturated Fat: 0.01g | Monounsaturated Fat: 0.01g | Sodium: 292.59mg | Potassium: 52.51mg | Fiber: 0.47g | Sugar: 2.32g | Vitamin A: 41.01IU | Vitamin C: 5.17mg | Calcium: 7.78mg | Iron: 0.14mg