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–+ servings

Pickled Red Onion Recipe

A jar of homemade pickled red onions.
These quick pickled red onions add tangy crunch and a pop of color to your favorite meals! With their sweet-and-sour flavor, they’re delicious on tacos, burgers, salads, breakfast, and so much more. Make a jar ahead of time and keep it in the fridge whenever a meal needs a little extra something.
Servings: 1 jar

Ingredients

Optional -

Instructions

  • Thinly slice the red onion into rings or half-moons. Use a mandoline slicer for perfectly uniform slices.
  • In a small saucepan, combine the vinegar, water, sugar, and salt. Bring to a soft boil and stir until the sugar and salt dissolve.
  • Place the sliced onions in a clean glass jar, keeping the layers separate. Add any optional toppings.
  • Let the pickling liquid cool slightly, then pour it over the onions, making sure they're fully covered.
  • Seal the jar and refrigerate. The onions are ready when the water is pink. For best results, wait one day.
  • Enjoy these tangy pickled red onions on your favorite meals for up to two weeks.

Notes

  • Choose firm, fresh red onions for the best flavor, color, and crunch.
  • White vinegar adds classic tang, while apple cider, red wine, or rice vinegar offer different flavor profiles.
  • Warm the pickling liquid just enough to dissolve the sugar and salt, don’t boil.
  • Make sure the onions are fully submerged in the pickling liquid.
  • Refrigerate for a few hours before serving; chilling overnight adds even more flavor.
  • Use a mandoline for thin, even slices.
  • Store in a clean glass jar with a tight-fitting lid in the refrigerator.
  • Keep refrigerated and enjoy within two weeks. Label the jar with the date you made it.