These quick pickled red onions are a simple way to add bold, tangy flavor to everyday meals. If you’ve ever wondered how to pickle red onions quickly without canning, this easy refrigerator method is the answer. With a basic vinegar brine and a short rest time, thinly sliced onions transform into a crisp, slightly sweet topping that works on everything from tacos to burgers and salads. I like adding peppercorns and bay leaves for extra depth, but this is a flexible recipe you can customize based on what you have on hand.
Why You Will Love These Quick Pickled Red Onions
- Quick refrigerator pickled onions – These pickled onions are ready in about 30 minutes, with no canning required.
- Perfect topping for tacos, burgers, and sandwiches – Quick pickled red onions add bright, tangy flavor to almost any dish.
- Easy homemade pickled onions – Easily made with simple pantry ingredients.
- Customizable brine – Easily, adjust the sweetness, vinegar type, and spices.
- Great for meal prep – Quick pickled red onions will keep in the fridge for up to two weeks, and get even more flavorful, over time.
Ingredient Substitutions
- Red onion: Substitute with white onion or sweet onion (milder flavor).
- White vinegar: Easily use apple cider vinegar (slightly sweeter) or rice vinegar (milder).
- Sugar: Replace with honey or maple syrup.
- Peppercorns & bay leaves: Optional, or swap with garlic cloves, crushed red pepper flakes, mustard seeds, and/or fresh herbs.
How to Prepare Quick Pickled Red Onions
- Slice the red onion into thin, even slices and set aside.
- In a small saucepan, combine the vinegar, water, sugar, and salt. Warm over medium heat just until the sugar and salt dissolve (do not boil).
- Place the sliced onions into a heatproof jar or bowl. Add the peppercorns and bay leaves.
- Pour the warm brine over the onions, making sure they are fully submerged.
- Let sit at room temperature for at least 20–30 minutes until softened and bright pink.
- Transfer to the refrigerator for longer storage and deeper flavor.
How to Serve and Store
- Serve these quick pickled red onions on tacos, burgers, sandwiches, wraps, salads, grain bowls, and avocado toast.
- Try them on these Doner Kabob Pitas, in this Lamb Meatball Mediterranean Salad Bowl, or in this Greek Chicken Rice Bowl.
- Great alongside grilled meats or added to charcuterie boards.
- Store in an airtight container in the refrigerator for up to 2 weeks. The flavor continues to develop over time.
Frequently Asked Questions
Use a warm vinegar brine and thinly sliced onions. This allows them to soften and absorb flavor in as little as 20–30 minutes.
No. You only need to warm the vinegar enough to dissolve the sugar and salt. Boiling is not necessary for quick refrigerator pickled onions.
White vinegar gives the sharpest flavor, apple cider vinegar adds slight sweetness, and rice vinegar creates a milder, more delicate taste.
Sugar helps balance the acidity of the vinegar, but you can reduce or omit it for a sharper flavor.
They will keep in the refrigerator for up to 2 weeks when stored properly in an airtight container.
They are perfect for tacos, burgers, sandwiches, salads, grain bowls, and more. They add a bright, tangy contrast to rich or savory dishes.
These quick pickled red onions are one of the easiest ways to add bright, tangy flavor to everyday meals. If you’re looking for how to pickle red onions quickly, this simple refrigerator method comes together with just a few pantry ingredients and no canning required. The onions soften in minutes while still keeping a slight crunch, and the balance of vinegar, salt, and a touch of sweetness makes them perfect for tacos, burgers, sandwiches, salads, and grain bowls. The addition of peppercorns and bay leaves gives them a little extra depth, but you can easily customize the brine to fit whatever you’re serving.
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Quick Pickled Red Onions
- Total Time: 7 minutes
- Yield: 6 to 8 servings 1x
Description
Quick pickled red onions made with a simple vinegar brine. It’s an easy refrigerator method with no canning. Ready in minutes and perfect for tacos, burgers, sandwiches, and salads.
Ingredients
- 1 medium red onion, thinly sliced
- ½ cup vinegar (white vinegar, apple cider vinegar, or rice vinegar)
- ½ cup water
- 1–2 tablespoons sugar (adjust to taste)
- 1 to 1½ teaspoons salt
- 1 teaspoon whole peppercorns
- 2 bay leaves
Instructions
- Slice the red onion into thin, even slices and set aside.
- In a small saucepan, combine the vinegar, water, sugar, and salt. Warm over medium heat just until the sugar and salt dissolve (do not boil).
- Place the sliced onions into a heatproof jar or bowl. Add the peppercorns and bay leaves.
- Pour the warm brine over the onions, making sure they are fully submerged.
- Let sit at room temperature for at least 20–30 minutes until softened and bright pink.
- Transfer to the refrigerator for longer storage and deeper flavor.
- ENJOY!
Notes
- Slice onions thin for the best texture and fastest pickling.
- Make sure onions are fully submerged in the brine.
- Adjust sugar depending on how sweet or tangy you prefer.
- Let sit longer for a deeper, more developed flavor.
- Try mixing different vinegars for a more complex taste.
- Prep Time: 5 minutes
- Cook Time: 2 minutes
- Category: Condiment, Side Dish
- Method: Easy
- Cuisine: American
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