Whether you’re piling them onto tacos, burgers, sandwiches, or salads, these quick pickled red onions add the perfect pop of color and flavor. They’re incredibly easy to make with just a handful of pantry ingredients and taste even better after a little time in the refrigerator.
Some recipes earn a permanent place in your refrigerator, and these quick pickled red onions are one of them. Crisp red onions are lightly pickled in a simple vinegar brine with fresh jalapeños, lime juice, and just a touch of sugar for the perfect balance of flavor. They’re ready in about 30 minutes, require no special equipment or canning, and instantly brighten everything from tacos and burgers to grain bowls and salads. I almost always keep a jar waiting in the fridge because they’re one of the easiest ways to add fresh flavor to everyday meals.
Why You’ll Love These Quick Pickled Red Onions
These quick pickled red onions are one of the easiest ways to add fresh, vibrant flavor to everyday meals. They take just minutes to prepare, keep well in the refrigerator, and make everything from tacos to sandwiches taste even better.
- Ready in about 30 minutes
- Crisp, fresh flavor with just the right balance of sweet and savory
- Mild heat from fresh jalapeños
- No canning required
- Keeps well in the refrigerator
- Delicious on tacos, burgers, salads, sandwiches, grain bowls, and more
I originally created these quick pickled red onions for my Easy Chicken Tacos, where their crisp texture and bright flavor were the perfect finishing touch. Since then, they’ve become a refrigerator staple that I always have on hand. We add them to burgers, sandwiches, grain bowls, and salads. In fact, one friend who tried the recipe laughed and said, “We put them on everything!” I couldn’t agree more.
Ingredients You’ll Need
This recipe uses a handful of simple ingredients that work together to create crisp, flavorful pickled onions with just the right balance of sweetness, acidity, and a little heat from fresh jalapeños.
- Red onion: Sweetens slightly as it pickles and develops its signature bright pink color.
- Fresh jalapeño: Adds mild heat and extra flavor to the brine.
- White wine vinegar: Gives the onions a clean, bright flavor without overpowering them.
- Lime juice: Adds fresh citrus notes that pair especially well with Mexican-inspired dishes.
- Sugar: Balances the acidity and helps mellow the onions.
- Kosher salt: Enhances all of the flavors while helping soften the onions.
- Water: Slightly softens the vinegar for a more balanced pickle.
Why Add Jalapeños?
Fresh jalapeños add just a touch of heat and even more flavor to the pickling brine without overpowering the onions. As they pickle, they become milder while infusing the onions with subtle spice.
- Adds gentle heat rather than intense spiciness
- Gives the brine extra flavor
- Pickles alongside the onions and can be eaten too
- Perfect for tacos, burgers, nachos, sandwiches, and salads
- Easily omitted if you prefer a milder pickle
How to Make Quick Pickled Red Onions
Making refrigerator pickled onions couldn’t be easier. Simply prepare the brine, pour it over the sliced onions and jalapeños, and let the flavors develop as they cool.
- Thinly slice the red onion and jalapeño.
- Place them into a clean glass jar or heatproof container.
- Combine the vinegar, water, lime juice, sugar, and salt in a small saucepan.
- Heat just until the sugar and salt dissolve.
- Carefully pour the warm brine over the onions.
- Let cool to room temperature.
- Refrigerate for at least 30 minutes before serving for the best flavor.
Red onions are my favorite choice for quick pickling because their naturally mild flavor softens even more in the brine, and they transform into a beautiful bright pink color. Slice both the onions and jalapeños as thinly as possible so they pickle quickly and absorb the flavors evenly. If you prefer little or no heat, remove the seeds and membranes from the jalapeños before slicing. For a spicier batch, leave the seeds intact or add a few slices of habanero to the jar.
The warm brine comes together in just a few minutes and is poured directly over the onions and jalapeños. While they’re delicious after about 30 minutes in the refrigerator, I think they’re even better the next day. The onions become slightly more tender, the flavors have time to meld, and the jalapeños mellow just enough while still adding a subtle kick to every bite.
What to Serve with Pickled Red Onions
These quick pickled red onions add color, crunch, and fresh flavor to all kinds of meals. Here are some of my favorite Good Dinner Mom recipes where they fit right in:
- Easy Chicken Tacos
- Grilled Fish Tacos
- Greek Tacos with Tzatziki and Feta
- Juicy Turkey Burgers
- Chinese Chicken Salad
- Classic Mexican Rice
- Ultimate Greek 7 Layer Dip
- Turkey Chili in the Slow Cooker
- Easy Skillet Chicken Enchiladas
- Instant Pot Chile Verde
I’d also add them to:
- Sandwiches and wraps
- Burrito and grain bowls
- Green salads
- Potato salad
- Scrambled eggs
- Avocado toast
Easy Variations
Once you’ve mastered the basic recipe, it’s easy to customize the flavor. Try one of these simple variations to make the recipe your own.
- Leave out the jalapeños for classic pickled red onions.
- Replace the jalapeños with serrano peppers for extra heat.
- Add smashed garlic cloves.
- Include whole black peppercorns.
- Add coriander seeds for a citrusy flavor.
- Stir in cumin seeds for a subtle earthy note.
- Add a few sprigs of fresh oregano.
- Use a pinch of crushed red pepper flakes for additional spice.
How to Store Pickled Red Onions
Proper storage keeps your pickled onions crisp and flavorful. A few simple tips will help them stay fresh and delicious in the refrigerator.
- Store in a tightly sealed glass jar or airtight container.
- Refrigerate at all times.
- The flavor improves after the first day.
- Keep the onions submerged in the brine.
- Always use a clean utensil when serving.
- Enjoy within 2 to 3 weeks for the best flavor and texture.
Frequently Asked Questions
Here are answers to a few common questions about making and storing quick pickled red onions.
Can I make these without jalapeños?
Yes! Simply omit the jalapeños for a classic quick pickled red onion recipe.
Can I use apple cider vinegar instead?
Yes. Apple cider vinegar gives the onions a slightly sweeter, fruitier flavor than white wine vinegar.
Do I have to heat the brine?
Heating helps dissolve the sugar and salt quickly while slightly softening the onions, but you don’t need to boil it.
How long do pickled red onions last?
When refrigerated and kept submerged in the brine, they stay fresh for about 2 to 3 weeks.
Can I reuse the brine?
It’s best to make a fresh batch of brine each time to maintain the best flavor and food quality.
Why did my onions turn bright pink?
That’s completely normal. The natural pigments in red onions react with the acidic brine, creating their beautiful vibrant color.
If you’ve never made quick pickled onions before, you’ll be surprised by how simple they are—and how often you’ll find yourself reaching for them. Whether you’re topping tacos, layering sandwiches, or adding a little crunch to salads and bowls, this easy refrigerator recipe is one you’ll come back to again and again. If you give them a try, I’d love to hear how you served them in the comments below!
Quick Pickled Red Onions with Jalapeños
Ingredients
- 1 small red onion halved and sliced thin
- 2 jalapeno chiles stemmed and sliced into thin rings
- 1 cup white wine vinegar
- 2 Tbsp lime juice
- 1 Tbsp sugar
- 1 tsp salt
- ½ tsp black pepper
- 1 cup water
Instructions
- Prepare the vegetables: Place the thinly sliced red onion and jalapeño rings in a clean glass jar or medium heatproof bowl.1 small red onion, 2 jalapeno chiles
- Make the brine: In a small saucepan, combine the white wine vinegar, lime juice, sugar, salt, black pepper, and water. Heat over medium-high heat, stirring until the sugar and salt dissolve. Bring just to a gentle boil, then remove from the heat.1 cup white wine vinegar, 2 Tbsp lime juice, 1 Tbsp sugar, 1 tsp salt, ½ tsp black pepper, 1 cup water
- Pour over the vegetables: Carefully pour the hot brine over the onions and jalapeños until they're completely submerged.
- Cool and pickle: Let the onions cool to room temperature, then refrigerate for at least 30 minutes before serving. For the best flavor, refrigerate overnight. Store covered in the refrigerator for up to 2 to 3 weeks.
Notes
- Slice the onions and jalapeños as thinly as possible for the quickest pickling and best texture.
- A mandoline slicer makes quick work of the onions and creates even slices.
- The onions become brighter in color and even more flavorful after a day in the refrigerator.
- Keep the onions submerged in the brine for the best flavor and freshness.
- For extra heat, leave the jalapeño seeds intact or add a few slices of habanero.
- Use a splash of the leftover brine to dress shredded cabbage for an easy taco slaw or drizzle it over grain bowls and salads for extra flavor.
Delicious and so very easy to make!!! We tried them on tacos and then on BBQ pork sandwiches. Both we incredible!
I made this a couple of weeks ago. These were really good for the first few days then FREAKING INCREDIBLE after that. The color combined with the crispy texture and yummy taste made these a HUGE hit with my family. Delicious!
I made this for your Easy Chicken Tacos. Both are wonderful. Combined the leftover chicken and onions over crunchy lettuce for my work lunch. So good either way. Thanks for this!
Hi Shannon, I love this suggestion for the leftover chicken and onions. Thanks for trying the recipes and taking the time to let me know how you liked them, it means a lot! š
Yum! Trying this in my fish tacos šš»
Hi Tish, we love it on every type of taco recipe I make. Let me know what you think of them. Thanks for stopping by to comment!