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4.72 from 7 votes

How to Make Pickled Red Onions

Learn how to make Pickled Red Onions and customize the pickling juice several different ways. Pickled Red Onions add a punch of flavor to any dish!
Prep Time5 mins
Cook Time5 mins
Total Time10 mins
Servings: 1 pint sized jar
Calories: 273kcal


Pickled Red Onions

  • 1 red onion
  • 1 1/2 cups white vinegar
  • 2 tablespoons sugar
  • 1 tablespoon salt

Optional Flavorings (Pick one or mix and match)

  • 1 teaspoon black peppercorns
  • 1 teaspoon allspice berries
  • 2 sprigs fresh rosemary
  • 2 sprigs fresh thyme
  • 1 small hot red pepper
  • 3 whole peeled garlic
  • 1 teaspoons whole cumin seeds


  • Peel and slice red onion into thin slices. Place into a pint sized mason jar, or other glass, plastic, or ceramic container with a sealable lid.
  • In a small saucepan stir together vinegar, sugar, and salt. Add in 1 or more additional optional flavorings as desired. Bring to a boil, then remove from heat.
  • Pour mixture over onions in jar until full. Place the lid on and let cool to room temperature.
  • Place the lid on to seal and refrigerate.


Calories: 273kcal | Carbohydrates: 49g | Protein: 3g | Fat: 1g | Sodium: 7003mg | Potassium: 487mg | Fiber: 5g | Sugar: 31g | Vitamin A: 580IU | Vitamin C: 80.8mg | Calcium: 135mg | Iron: 3.2mg