Quick Pickled Red Onions are one of those delightful toppings that seem to take any dish up a notch. With their vibrant color and sharp, tangy flavor, they’re perfect for adding a pop of brightness to tacos, sandwiches, salads, and more. What I love most about these quick pickles is how simple they are to make at home—just a handful of ingredients and a few minutes of your time. They transform an ordinary meal into something truly special, and trust me, once you try them, you’ll wonder how you ever lived without this zesty condiment.

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
Quick Pickled Red Onions

I remember the first time I made Quick Pickled Red Onions; it was for a summer barbecue. Everyone was raving about them, and I ended up giving away jars as gifts! Fast forward a few years, and they’ve become a staple in my fridge. The best part? They’re ready to enjoy in just 30 minutes! Whether you’re a long-time pickle fanatic or just looking for an easy way to add flavor to your meals, this recipe is a must-try. Let’s get started on making your own batch!

Why You’ll Love This Recipe

Simple & Quick: Whip up a jar of these tangy delights in just 10 minutes of active prep time!
Irresistible Flavor: A perfect balance of tangy and sweet with a hint of spice that elevates any dish.
Eye-Catching Appeal: Those bright pink onions are not just tasty; they also add a beautiful touch to your meals.
Flexible Serving: Perfect as a topping for tacos, salads, or sandwiches—anytime you want a flavor boost!
Diet-Friendly Options: Naturally gluten-free and vegan, making them a great choice for various diets.

Ingredients You’ll Need

2 large red onions, very thinly sliced: About 4 to 5 cups. Red onions are ideal for pickling due to their sweetness and color. A mandoline slicer works wonders for achieving perfectly thin slices.
2 cups apple cider vinegar (or distilled white vinegar): This is the base for your brine, imparting that essential tang. Apple cider vinegar adds a slightly fruity note, while distilled vinegar is more neutral.
1 cup water: Balances the acidity of the vinegar, allowing the onions to pickle without being overwhelming.
2 tablespoons granulated sugar: This balances the tartness of the vinegar. If you want a sugar substitute, try honey or maple syrup for a different flavor profile.
1 tablespoon kosher salt: Enhances the flavor and helps to draw out moisture from the onions.
1 teaspoon black peppercorns: Adds a lovely warmth to the brine. You can leave these out if you prefer a smoother flavor.
4 cloves garlic, smashed: Infuses the brine with a delightful garlic flavor. Feel free to add more if you love garlic!
½ teaspoon red pepper flakes (optional): This adds a subtle heat to the pickles. Adjust the amount based on your spice tolerance.

How to Make Quick Pickled Red Onions

Slice the Onions: Thinly slice the red onions until you have about 4 to 5 cups. A mandoline helps achieve those paper-thin slices, but a sharp knife works too. Next, pack the onions tightly into a clean 2-quart glass jar, or you can distribute them between two quart jars or four pint jars.
Prepare the Brine: In a small saucepan or microwave-safe bowl, combine 2 cups of apple cider vinegar, 1 cup of water, 2 tablespoons of granulated sugar, and 1 tablespoon of kosher salt. Add the 1 teaspoon of black peppercorns, 4 smashed garlic cloves, and red pepper flakes if you’re using them. Heat the mixture just until the sugar and salt dissolve—about 1 to 2 minutes on the stovetop or 30 to 45 seconds in the microwave. Just keep an eye on it to prevent boiling.
Pour the Brine: Carefully pour the warm brine over the sliced onions, ensuring they are completely submerged. Use a spoon or a chopstick to gently press the onions down so that they are all covered by the brine.
Cool and Refrigerate: Allow the jar to cool down to room temperature for about 20 to 30 minutes. Once cooled, seal the jar and pop it in the refrigerator.
Enjoy: While you can enjoy these Quick Pickled Red Onions after just 15 to 30 minutes of chilling, they will develop even better flavor if left overnight.

Storing & Reheating

To keep your Quick Pickled Red Onions fresh, store them in the refrigerator in an airtight container. They will last for up to two weeks refrigerated; just be sure to keep them submerged in the brine for the best flavor and texture. You can also freeze the pickled onions, but keep in mind that their texture may change after thawing. For freezing, transfer them to a freezer-safe container, where they’ll stay good for up to 3 months. When you want to use them again, simply thaw in the fridge and enjoy.

Chef’s Helpful Tips

Avoid slicing your onions too thick; thin slices ensure they pickle quickly.
Make sure your jars and utensils are clean to avoid bacteria that can spoil the pickles.
If you find the brine too strong, feel free to dilute it with a bit more water next time.
Experiment with adding other spices, such as mustard seeds or coriander, for a unique twist on the flavor.
For extra pronounced flavors, let the onions sit in the brine for 24 hours before using.

Quick Pickled Red Onions add a delightful tangy crunch to so many dishes, and you have the power to customize the flavors to suit your taste. Whether you’re catering to a crowd or enhancing your lunch, this recipe serves up convenience and flair in every bite. Just imagine diving into a crunchy taco or a fresh salad topped with those vibrant pink onions—they truly make every meal pop!

Recipe FAQs

How long will Quick Pickled Red Onions last in the fridge?

These pickled onions can last in the refrigerator for up to two weeks. Just be sure to keep them submerged in the brine for the best preservation. If you notice any signs of spoilage, it’s best to discard them.

Can I use other types of onions for pickling?

Absolutely! While red onions are fantastic for their sweet flavor and color, you can also use white or yellow onions. Just keep in mind that the taste will vary; white onions will be sharper, while yellow onions will have a mild sweetness.

Can I adjust the sweetness of the brine?

Yes! If you like it sweeter, you can increase the sugar to 3 tablespoons or more, depending on your taste. Alternatively, if you prefer a less sweet flavor, you can decrease the sugar amount.

What dishes can I use Quick Pickled Red Onions with?

The versatility of these pickled onions is endless! They are perfect atop tacos, burgers, sandwiches, and salads. They also make a delightful addition to grain bowls and charcuterie boards, adding color and zest.

Now that you’re all set, roll up your sleeves and get ready to create these flavor-packed treasures. Your culinary adventure awaits!

More Desserts & Appetizers Recipes

Easy Black Bean Dip

Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.

📖 Recipe Card

Quick Pickled Red Onions

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews

Author: Peter
Prep Time: 10 minutes
Cook Time: 5 minutes
Total Time: 15 minutes
Yield: 8 servings 1x
Category: Condiment
Method: Pickling
Cuisine: American

Print Recipe

Description

This recipe for quick pickled red onions delivers irresistible flavor with simple ingredients and easy prep. Perfect for adding a tangy crunch to salads, tacos, or sandwiches!

Ingredients

Scale

2 large red onions, very thinly sliced (about 4 to 5 cups sliced)
2 cups (480 ml) apple cider 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

Cook Mode Prevent your screen from going dark

Instructions

Thinly slice the red onions, packing them tightly into a clean 2-quart glass jar (or divide them between two quart jars or four pint jars).
In a small saucepan or microwave-safe bowl, mix the apple cider vinegar, water, sugar, salt, black peppercorns, smashed garlic, and red pepper flakes if desired. Heat until sugar and salt dissolve, about 1-2 minutes on the stovetop or 30-45 seconds in the microwave. Stir well but do not let it boil.
Pour the warm brine over the onions ensuring they are fully submerged. Push them down with a spoon or chopstick if necessary.
Allow the jar to cool to room temperature for about 20-30 minutes, then seal and refrigerate.
The onions are ready to enjoy after 15-30 minutes of chilling, but will taste best if left for a few hours or overnight.

Notes

For an added kick, include more red pepper flakes according to your heat preference.
These pickled onions can last for up to two weeks in the refrigerator.
Experiment with different types of vinegar for unique flavors.