Quick pickled red onions are a culinary wonder, transforming everyday meals into something special with just a small addition. The vibrant color and tangy flavor of these quick pickles can elevate tacos, salads, sandwiches, and more, offering a satisfying crunch and zesty kick. What I love most about this recipe is its simplicity; in no time at all, you can have a jar of pickled onions sitting in your fridge, ready to brighten up your dishes.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Quick Pickled Red Onions
Storing & Reheating
Chef’s Helpful Tips
Recipe FAQs
Quick Pickled Red Onions

I first came across quick pickled red onions during a potluck dinner. They were showcased in a taco bar, and I was instantly smitten. The contrast between the spiced meats and the tart onions was delightful—a tangy burst that was refreshing and addictive. Ever since then, I’ve kept a batch in my fridge and enjoyed them on everything from burgers to breakfast bowls. This method is fabulous for busy schedules or last-minute gatherings—it takes only a few minutes to whip up, and you’ll discover that everyone loves them!

Why You’ll Love This Recipe

Simple & Quick: Ready to go in just 30 minutes.
Irresistible Flavor: Tangy, slightly sweet, with a hint of spice—perfectly scrumptious!
Eye-Catching Appeal: The vibrant pink hue adds a pop of color to any dish.
Flexible Serving: Great as a topping for anything from tacos to salads, or enjoyed straight from the jar.
Diet-Friendly Options: Naturally gluten-free and vegan, making it suitable for everyone.

Ingredients You’ll Need

2 large red onions: Thinly sliced, these add both flavor and a gorgeous aesthetic.
2 cups (480 ml) apple cider vinegar: This is the base of your brine, providing acidity and a hint of sweetness. Distilled white vinegar is a good substitute.
1 cup (240 ml) water: Balances the acidity and helps create the perfect brining solution.
2 tablespoons granulated sugar: Enhances the flavor by adding a touch of sweetness. You can adjust the amount depending on your taste.
1 tablespoon kosher salt: Essential for flavoring and preserving the onions.
1 teaspoon black peppercorns: Adds a delightful spiciness that complements the tang.
4 cloves garlic, smashed: Introduces an aromatic depth to the brine.
½ teaspoon red pepper flakes (optional): For those who enjoy a little heat.

How to Make Quick Pickled Red Onions

Prepare the Onions: Start by thinly slicing the red onions. A mandoline works wonders for achieving paper-thin slices, ensuring the onions pickle evenly. Once sliced, pack them tightly into a clean 2-quart glass jar, or feel free to divide them into smaller jars if you prefer.
Make the Brine: In a small saucepan or microwave-safe bowl, combine the 2 cups of apple cider vinegar, 1 cup of water, 2 tablespoons of granulated sugar, 1 tablespoon of kosher salt, 1 teaspoon of black peppercorns, and the 4 smashed garlic cloves. Heat the mixture just until the sugar and salt dissolve—1 to 2 minutes on the stovetop or 30 to 45 seconds in the microwave. Avoid boiling it; you just want a nice warm brine.
Combine and Submerge: Pour the warm brine over the sliced onions, ensuring they’re completely covered. Use a spoon or chopstick to gently press the onions down into the liquid, keeping them submerged.
Cool and Refrigerate: Let the jar cool at room temperature for about 20 to 30 minutes. Afterward, seal the jar and refrigerate it.
Enjoy! While the onions will be ready to eat after 15 to 30 minutes in the fridge, their flavor truly develops if left for a few hours or overnight. The longer they sit, the more robust their flavor becomes!

Storing & Reheating

To store your quick pickled red onions, keep them in the refrigerator in a sealed jar. They’ll last for up to two weeks. As for reheating, it’s not necessary since they are served cold. Simply enjoy them straight from the fridge. Note that their texture might soften over time, but they will still retain fantastic flavor. If you prefer them crisper, use them within the first week.

Chef’s Helpful Tips

Balanced Sweetness: If you like it sweeter, try adding a bit more sugar, or use honey or agave for a natural alternative.
Slice Thickness: Keep your slices as thin as possible. This ensures that they pickle properly and retain a satisfying crunch.
Vinegar Variations: Feel free to mix up your vinegars! White wine vinegar or even rice vinegar can provide a different taste profile.
Garlic Flavor Test: For a milder garlic profile, use roasted garlic instead of raw. It adds a lovely sweetness!
Make Ahead: These quick pickled onions can easily be made in advance—just make sure to store them in the fridge!

There’s something incredibly satisfying about having a jar of quick pickled red onions ready to enhance your meals. The delightful tartness can transform everything from a simple piece of grilled chicken to a fresh taco platter. Plus, they’re so easy to make that you might find yourself whipping up batches frequently!

Recipe FAQs

How long do quick pickled red onions last?

Quick pickled red onions can last up to two weeks in the refrigerator. Just ensure they’re stored in a sealed jar to maintain their crispness and flavor.

Can I adjust the sweetness of the pickled onions?

Absolutely! You can modify the amount of sugar based on your preference. If you’re looking for something sweeter, feel free to add more granulated sugar or even honey or agave syrup.

What are some tasty ways to enjoy quick pickled red onions?

These pickled onions are incredibly versatile! You can add them to tacos, use them as a topping for burgers and sandwiches, toss on salads, or even incorporate them into grain bowls and charcuterie boards.

Is it necessary to use red onions for pickling?

While red onions are popular for their beautiful color and mild flavor, you can certainly use yellow or white onions. Each type offers a slightly different flavor profile, so feel free to experiment!

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Quick Pickled Red Onions

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Author: Anna
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Yield: 8 servings 1x
Category: Condiments
Method: Pickling
Cuisine: American

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Description

These Quick Pickled Red Onions are a delightful combination of sweet and tangy flavors. With just a few simple ingredients and minimal prep, they elevate any meal. Enjoy them on tacos, sandwiches, or salads for a flavorful kick!

Ingredients

Scale

2 large red onions, very thinly sliced (about 4 to 5 cups sliced)
2 cups (480 ml) apple cider vinegar or distilled white vinegar
1 cup (240 ml) water
2 tablespoons granulated sugar
1 tablespoon kosher salt
1 teaspoon black peppercorns
4 cloves garlic, smashed
½ teaspoon red pepper flakes, optional

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Instructions

Thinly slice the red onions and pack them tightly into a clean 2-quart glass jar or divide them into smaller jars.
In a saucepan or microwave-safe bowl, combine the apple cider vinegar, water, granulated sugar, kosher salt, black peppercorns, smashed garlic cloves, and red pepper flakes if using.
Heat the mixture until the sugar and salt dissolve, about 1 to 2 minutes on the stovetop or 30 to 45 seconds in the microwave without boiling.
Pour the warm brine over the onions, ensuring they are completely submerged. Press the onions down gently if needed.
Let the jar cool to room temperature, about 20 to 30 minutes, then seal and refrigerate.
Enjoy the onions after chilling for 15 to 30 minutes, though their flavor improves after a few hours or overnight.

Notes

Store pickled red onions in the refrigerator for up to 2 weeks.
Use a mandoline for even, thin slices for the best texture.
Experiment with adding your favorite spices!