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Easy Pickled Red Onion Recipe: Quick Homemade Guide

Tangy, vibrant, and ready in under an hour, this easy pickled red onion recipe adds zesty flavor and bright color to tacos, salads, and sandwiches—perfect for quick meal upgrades.
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Prep Time 10 minutes
Cook Time 5 minutes
Total Time 50 minutes
Servings: 1 pint
Course: Condiment
Cuisine: Global
Calories: 15
Ingredients Method Notes

Ingredients
  

  • 1 large red onion thinly sliced
  • 1 cup white vinegar or apple cider vinegar
  • 1 cup water
  • 1 tablespoon sugar
  • 2 teaspoons kosher salt

Method
 

  1. Peel and thinly slice the red onion into half-moons. Place slices into a 1-pint mason jar.
  2. In a small saucepan, combine vinegar, water, sugar, and salt. Bring to a boil over medium-high heat, stirring until dissolved.
  3. Remove from heat and let brine rest for 5 minutes. Pour hot liquid over the onions, ensuring they are fully submerged.
  4. Cool at room temperature for about 30 minutes, then refrigerate.
  5. Let sit for at least 1 hour before serving; flavors peak after 24 hours.

Notes

For a fruity variation, use apple cider vinegar instead of white vinegar. Add sliced jalapeños or garlic cloves for extra flavor. Store refrigerated for up to 2 weeks.