Easy Pickled Red Onions – Tangy, Bright & Ready in 1 Hour!
Let’s talk about the one simple thing that makes almost every dish better: Pickled Red Onions. They’re tangy, a little sweet, and just the right amount of punchy. Whether you’re topping tacos, piling them onto avocado toast, or adding them to a grain bowl, these onions add color, crunch, and that addictive vinegary brightness.
This is my go-to recipe that comes together in less than 10 minutes and is ready to eat in about an hour. Bonus: they keep in the fridge for up to two weeks (if you don’t eat them all before then!).
Where to Use Pickled Red Onions
The possibilities are endless! Try them on:
- Tacos
- Avocado toast
- Grain bowls or Buddha bowls
- Grilled chicken or fish
- Salads
- Sandwiches or burgers
- Deviled eggs or charcuterie boards
Pickled Red Onions
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Equipment
- Airtight Jar
Ingredients
- 1 large red onion thinly sliced
- ½ cup white wine vinegar
- 1 cup water
- 1 tsp sea salt
- 1 tsp organic sugar
- ½ tsp red pepper flakes
Instructions
- Thinly sliced the onions, place the onions in an airtight jar.1 large red onion
- Add vinegar, water, sugar, chili flakes, and salt. Tightly seal the jar and shake for 30 seconds. Place in the fridge.½ cup white wine vinegar, 1 cup water, 1 tsp organic sugar, ½ tsp red pepper flakes, 1 tsp sea salt
- The pickled onions will be ready to eat once they are bright pink. About one hour. They will keep in the fridge for up to two weeks.
Video
More About This Recipe
Pro Tips for the Best Pickled Onions
- Slice thinly and evenly – This ensures the onions pickle quickly and evenly.
- Use a mandolin if you have one – It makes the slicing super easy and uniform.
- Shake the jar well – It helps the flavors infuse and distributes the ingredients evenly.
- Let them marinate longer for stronger flavor – They’re great after an hour but amazing after 24 hours.
- Add-ins for extra flair – Try tossing in a smashed garlic clove, peppercorns, or a sprig of thyme.
Kitchen Tools You’ll Need
- Sharp knife or mandolin – For slicing the onion super thin.
- Cutting board – A stable surface makes all the difference.
- Measuring cups & spoons – For precise ratios.
- Glass jar with a tight-fitting lid – I love using mason jars.
- Mixing bowl or measuring cup – To mix your pickling liquid.
Nutrition
Health Benefits of Pickled Red Onions
Pickled red onions aren’t just pretty—they’re functional, too:
- Gut-friendly: Thanks to the fermentation process (even quick-pickling!), pickled onions can support digestion and encourage a healthy gut microbiome.
- Anti-inflammatory properties: Red onions are naturally rich in quercetin, a plant compound known to help reduce inflammation and support heart health. Quercetin may even help fight free radicals and oxidative stress.
Final Thoughts
If you haven’t made your own pickled onions yet—this is your sign! They’re the easiest way to elevate almost any savory dish and they look SO pretty on the plate. I love keeping a jar in the fridge at all times, especially during spring and summer when everything’s calling for a little extra zing.
Let me know how you use yours, and tag me in your creations—I love seeing all your beautiful food!