Pickled Red Onions

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If you’ve never made pickled red onions before, get ready to fall in love. They’re tangy, sweet, crunchy, and instantly transform any dish into something that looks and tastes restaurant-worthy. From tacos to avocado toast, these pretty pink onions are the condiment you didn’t know you needed—until now.

Here’s the funny part: I’ve never been a fan of raw onions. Honestly, I try to avoid them in recipes that call for raw onions because I cannot  stand that harsh bite. But once I discovered pickled onions, everything changed. They’re not only tolerable—they’re amazing. The sharpness mellows out in the brine, leaving behind a tangy, slightly sweet flavor that complements almost every dish.

Now, I make a jar almost every week. I love how they add crunch, color, and brightness to otherwise simple meals. Plus, they make me feel like I’m eating something I’d order at a trendy café, except I made it right at home.

Why You’ll Love This Recipe

  • Quick & Easy – Ready in under 30 minutes, with just a handful of ingredients.
  • Customizable – Use different vinegars, add spices like peppercorns, or even toss in jalapeños for heat.
  • Beautiful & Flavorful – The vibrant pink color makes every dish pop while adding tangy crunch.
  • Versatile – Pile them on tacos, sandwiches, salads, bowls, avocado toast, or even grilled meats

How to make these pickled red onios

  1. Prep the onion: Peel the onion, then use a mandolin (or a sharp knife) to get thin slices. Optional: Soak the slices in cold water for 20 minutes to remove some of the raw onion bite. Drain and set aside.
  2. Make the brine: In a small pot, combine vinegar, water, sugar, and salt. Stir and bring to a simmer until the sugar and salt are dissolved. Remove from heat.
  3. Pack the jar: Place the sliced onions into a clean glass jar. Add peppercorns and bay leaves if using.
  4. Pour the brine: Carefully pour the hot brine over the onions, making sure they’re fully submerged.

FAQ

Yes! You can reduce or swap the sugar for honey, agave, or even a sugar alternative, though the flavor may vary.

Yes! White or yellow onions work too, but red onions give the prettiest color.

Not at all—it’s optional. I like soaking them in cold water first to mellow the bite, but you can skip this step if you enjoy a stronger onion flavor.


Pickled Red Onions

Instantly transform any dish into something that looks and tastes restaurant-worthy. From tacos to avocado toast, these pretty pink onions are the condiment you didn’t know you needed
Prep Time:10 minutes
20 minutes
Total Time:30 minutes
Course: Side Dish
Cuisine: American
Servings: 2 jars

Equipment

  • Mandolin or a very sharp knife

Ingredients

  • 1 red onion thinly sliced
  • 1 cup water
  • 1 cup apple cider vinager (or white, rice, or a mix)
  • ¼ cup sugar
  • 1 tablespoon salt
  • pepercorns or bay leaves optional

Instructions

  1. Peel the onion, then use a mandolin (or a sharp knife) to get thin slices. Optional: Soak the onions in cold water for 20 minutes, then drain.
  2. Heat vinegar, water, sugar, and salt in a saucepan until the sugar is dissolved.
  3. Add onions to a jar with optional peppercorns and bay leaves.
  4. Pour hot brine over onions to cover.
  5. Let it cool, seal, and refrigerate. Ready in 30 minutes, best after a few hours.

Notes

  • Do it the lazy way and add the boiling water to a heat safe measuring container.
  • Store in a sealed jar in the refrigerator. They’re best eaten within 2 weeks, though they usually don’t last that long in my house!

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