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Quick Tangy Pickled Red Onions Recipe for Easy Taco Topping at Home

quick tangy pickled red onions - featured image

A quick and easy recipe for tangy pickled red onions that add a crisp, flavorful punch to tacos and other dishes. Ready in about 15 minutes using simple pantry staples.

Ingredients

Scale
  • 1 medium red onion, thinly sliced
  • 1 cup apple cider vinegar
  • 1 cup water
  • 1 tablespoon granulated sugar
  • 1 teaspoon salt (kosher or sea salt preferred)
  • 1 garlic clove, thinly sliced (optional)
  • 56 whole black peppercorns
  • A pinch of red pepper flakes (optional)

Instructions

  1. Thinly slice 1 medium red onion into half-moons, about 1/8-inch thick.
  2. In a small saucepan, combine 1 cup apple cider vinegar, 1 cup water, 1 tablespoon granulated sugar, and 1 teaspoon salt. Add 1 sliced garlic clove, 5-6 whole black peppercorns, and a pinch of red pepper flakes if using.
  3. Heat over medium heat, stirring occasionally, until the sugar and salt dissolve completely and the mixture just starts to simmer (about 5 minutes).
  4. Place the sliced onions snugly into a glass jar or container.
  5. Carefully pour the hot vinegar mixture over the onions, making sure they’re fully submerged. Use a spoon to gently press the onions down if needed.
  6. Let the jar sit at room temperature until it cools (about 10-15 minutes), then seal with a lid and refrigerate.
  7. The onions will be tangy and ready to eat after 15-20 minutes but taste better after a few hours or overnight.

Notes

For extra crisp onions, soak sliced onions in ice water for 10 minutes before pickling and drain well. Heating the brine helps dissolve sugar and salt and jumpstarts flavor infusion. Store pickled onions in a sealed glass jar in the fridge for up to two weeks. Use a clean fork to avoid contamination. Adjust sweetness or acidity by tasting the brine before pouring. Variations include adding jalapeños for heat or fresh herbs for flavor.

Nutrition

Keywords: pickled red onions, quick pickled onions, taco topping, easy pickled onions, tangy onions, homemade pickled onions