Whole30-Friendly Pickled Red Onions Recipe for Tangy Sides

I could eat Mexican food for breakfast, lunch and dinner. Start the day with huevos rancheros or chilaquiles, then move on to tacos—tacos, tacos, tacos. A simple grilled chicken becomes extraordinary when topped with tangy tomatillo salsa and a handful of quick pickled red onions.

While crispy carnitas or a juicy brisket make excellent fillings, the right condiments are essential. The acidity and crunch of pickled red onions add flavor, texture and a bright pop of color that lifts tacos, salads and sandwiches alike.

I keep a jar of these pickled onions in the fridge for easy use on tacos, salads, sandwiches and even scrambled eggs. They’re Whole30-friendly, healthy and delicious. Make a batch and you’ll find yourself reaching for them constantly.

Quick pickled red onions

Quick Pickled Red Onions

These quick pickled red onions take only 10 minutes to prepare and will keep in the refrigerator for 3–4 days.
Prep Time5 minutes
Cook Time5 minutes
Total Time10 minutes
Course: Condiment
Cuisine: Mexican
Servings: 1 cup
Author: Marcia W. Smart

Ingredients

  • 1 cup rice vinegar or white wine vinegar
  • 1 cup water
  • 2 teaspoons kosher salt
  • 1 red onion cut in half and sliced very thin into half moons

Instructions

  • In a medium saucepan, bring the vinegar, water and kosher salt to a boil.
  • Place the sliced red onion in a glass or ceramic bowl and pour the hot vinegar mixture over the onions. Cover and let soak for 10–15 minutes.
  • Allow the onions to come to room temperature before serving. Store in the refrigerator for up to 3–4 days.