Summertime is all about embracing vibrant flavors, and what better way to add a tangy and spicy kick to your dishes than with homemade spicy pickled onions?

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Jar of pickled red onions with a forkful of onions resting on top of the jar.

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Summa summa summatime is UPON US! I'm not exactly sure where the months of May and June went this year because I feel like I haven't sat down since last fall, but here we are. The kids are either home annoying each other and us or at various camps, and we're trying to embrace all of the good summer produce and have a bit of time to kick back and actually relax for once with spring sports being over.

This spicy pickled onions recipe is just one of my favorites and screams summertime to me. I don't really care for pickled vegetables aside from onions, but these zesty little gems sure elevate your sandwiches, salads, tacos, and more.

So grab your apron, put "Summertime Magic" on repeat, and let's dive into this summertime delight of pickling onions.

Why Make Spicy Pickled Onions?

If you're wondering why you should embark on this five minute pickling adventure, here are a few reasons to convince you:

Burst of Flavor: Spicy pickled onions bring a burst of tanginess and heat to your dishes, instantly elevating their taste profile.
Easy peasy. The longer the onions sit in the vinegar, the better, but it doesn't take more than 5 minutes of labor.
Versatility: These vibrant pickled onions are incredibly versatile. From topping burgers and hot dogs to adding a tangy twist to tacos, sandwiches, salads, and more, they can transform any meal into a flavor fiesta. I'll give you some recipes below to showcase your pickled onions.
Summertime Refreshment: With their bright pink hue and refreshing tang, spicy pickled onions perfectly complement the sunny vibes of summer, making them an ideal condiment for all your outdoor gatherings and picnics.

Container of freshly cut red onions in a vinegar mixture with a hot pepper blend poured on top.

Ingredients Needed

You'll need to gather the following ingredients:

red onions
white vinegar
water
granulated cane sugar
hot pepper spice blend (see more below)
salt

For the hot pepper spice blend, my husband swears by Flatiron Pepper Company's Four Pepper Blend. This one is a combination of dried arbol, habanero, ghost pepper, and jalapeno peppers. Any dried hot pepper blend will work.

You can also include fresh hot peppers. You'll just need to include twice as much. Don't forget to include the seeds of the fresh hot peppers if you want it extra spicy.

Ingredients needed for pickling onions, including vinegar, salt, sugar, hot peppers, and a red onion.

How to Make Pickled Onions with Some Heat

First, thinly slice the red onions using a mandolin or sharp knife. Divide onions between 2 16 oz. jars.

Second, heat the vinegar, water, sugar, dried hot pepper blend, and salt in a medium saucepan over medium heat. Stir until the sugar and salt dissolves, about 1 minute. Turn off the heat and let cool until the water mixture is at room temperature (typically about 20 minutes).

Finally, pour mixture over the onions so they are covered. Place in the refrigerator for at least an hour, although overnight is ideal. The pickled onions are ready to eat when they are bright pink! Ain't they purdy?

Thinly sliced red onions on wood cutting board next to a mandolin.

Storage Instructions

Proper storage ensures that your spicy pickled onions stay fresh and delicious for as long as possible. Here's how to store them:

Transfer the pickled onions, along with the brine, into airtight containers or jars. I like 16 oz. standard mason jars.
Store the containers in the refrigerator to maintain their vibrant color, texture, and flavor.
Spicy pickled onions can be enjoyed for about two weeks if stored properly. However, the spicy flavor may intensify over time...so be warned!

mason jar full of spicy pickled onions next to black and white checkered napkin.

Creative Uses for Spicy Pickled Onions

Now that you have your tangy, pink pickled onions ready, you'll want to use them in a variety of ways. Here are a few ideas to get your creative juices flowing:

Falafel Plate: Ditch the meat and have your family choose what their favorite toppings are in a falafel salad or pita!
Gourmet Burgers: Elevate your burger game by topping your grilled patties with spicy pickled onions. The tangy heat pairs perfectly with juicy meat and creamy cheeses.
Flavorful Tacos: Add a zesty twist to your tacos by layering them with spicy pickled onions. They bring a refreshing crunch and a burst of flavor to any taco filling, from grilled shrimp to pulled pork.
Vibrant Salads: Transform your salads into vibrant masterpieces by tossing in some spicy pickled onions. They add a tangy punch and a pop of color to leafy greens or grain-based salads.
Sandwich Sensations: Take your sandwiches from ordinary to extraordinary by layering them with spicy pickled onions. They complement everything from deli meats to grilled vegetables, creating a symphony of flavors in every bite.
Cheese Platters: Create a show-stopping cheese platter by pairing your favorite cheeses with spicy pickled onions. The tangy heat cuts through the richness of the cheese, creating a perfect balance.

Pro Tips for Pickling Success

Practice Good Mandolin Safety. My friend who is an ER doctor always tells me how many mandolin injuries she gets coming into the emergency room. I always use cut-proof mandolin gloves (pictured below) when using the mandolin. I don't play.
Choose Fresh and Firm Onions: Opt for small red onions that are fresh and firm to ensure the best texture and flavor.
Customize the Heat: Adjust the amount of hot pepper spice blend to suit your taste preferences. Feel free to experiment with different spice levels and blends to create your signature pickled onions.
Embrace the Pickling Time: While an hour will do in a pinch, giving the pickled onions an overnight rest will allow the flavors to meld and develop, resulting in a more vibrant and delicious final product.
Get Creative with Presentation: Consider using unique jars or containers to store your pickled onions. This not only adds a touch of summertime whimsy but also makes for delightful gifts to share with friends and family.

aerial photo of mandolin glove over a mandolin. sliced red onions are nearby.

Other Recipes to Try

Easy Weeknight Falafel Platter

John's Maryland Baked Crab Cakes

Healthier Pineapple Chicken Stir Fry

Zero Effs Chicken

Shrimp and Avocado Salad Lettuce Wraps

Put on your favorite summer attire, gather your loved ones, and let the pickle party begin!

xox,

kathryn