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Quick Pickled White Onions Recipe

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3.8 from 3 reviews

Quick Pickled White Onions bring a bright, tangy crunch to your meals, perfect for enhancing sandwiches, salads, tacos, and more. This simple recipe uses a easy stovetop brine of rice vinegar, sugar, and kosher salt to pickled thinly sliced white onions in just 30 minutes, making it a fast and versatile condiment to elevate grilled meats, vegetables, cheese boards, or simply enjoy as a zesty snack.

Ingredients

Pickling Brine

  • 1 cup unseasoned rice vinegar
  • 2 tablespoons sugar
  • 3 teaspoons kosher salt

Vegetables

  • 1 medium white onion

Instructions

  1. Slice the Onion: Thinly slice the medium white onion using a sharp kitchen knife on a cutting board. Transfer the sliced onion to a 16 oz glass jar or a nonreactive container to prepare for pickling.
  2. Prepare the Brine: Place a small saucepan on the stovetop over medium-high to high heat. Add the rice vinegar, sugar, and kosher salt to the pan. Bring the mixture to a boil, then reduce heat to medium-low and stir occasionally until the sugar and salt fully dissolve, forming the pickling brine.
  3. Combine Brine and Onion: Remove the saucepan from heat and pour the hot brine directly over the sliced onions in the glass jar or container. This hot liquid will begin to pickle the onions immediately.
  4. Cool and Refrigerate: Allow the jar to cool at room temperature for about 30 minutes before placing a lid on it and transferring to the refrigerator. The onions can be served after cooling and will continue to develop flavor when chilled.

Notes

  • If using a larger 32-ounce Mason jar, double the brine ingredients accordingly to completely cover the onions.
  • This recipe is not suitable for traditional canning methods.
  • Optional: Add ½ teaspoon dried oregano to the brine for a pickled onion flavor reminiscent of escabeche.
  • Store the pickled onions in the refrigerator for up to 2 weeks.
  • Freezing is not recommended as it may impact texture and flavor.