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–+ servings
purple onions in a pint jar on counter with other herbs.

Pickled Red Onions Canning Recipe

erynwhalen
This quick pickled red onions recipe for canning brings a vibrant, zesty crunch to your pantry—perfect for topping tacos, burgers, and more.
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Prep Time 15 minutes
Cook Time 10 minutes
Course Appetizer
Cuisine American
Servings 4 pint jars
Calories 152 kcal

Ingredients
  

  • 4 large red onions thinly sliced
  • 2 cups apple cider vinegar
  • 1 cup water
  • ⅓ cup granulated sugar
  • 1 tbsp kosher salt
  • 4 cloves garlic peeled
  • 4 sprigs fresh thyme
  • 2 tsp whole black peppercorns
  • 2 tsp yellow mustard seeds

Instructions
 

  • Slice onions and pack into sterilized pint jars.
  • In a saucepan, bring vinegar, water, sugar, and salt to a boil. Stir to dissolve.
  • Pour brine over onions, leaving ½” headspace.
  • Remove air bubbles, wipe rims, and seal with lids and rings.
  • Process in a boiling water bath for 10 minutes.
  • Let jars sit undisturbed 12–24 hours. Store in pantry once sealed.

Nutrition

Calories: 152kcalCarbohydrates: 31gProtein: 2gFat: 1gSaturated Fat: 0.1gPolyunsaturated Fat: 0.2gMonounsaturated Fat: 0.4gSodium: 1759mgPotassium: 307mgFiber: 3gSugar: 22gVitamin A: 62IUVitamin C: 11mgCalcium: 60mgIron: 1mg
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