Homemade Pickled Onions in a glass jar with a fork stuck into it
Sides, Dips and Everything in Between

Homemade Pickled Onions


This recipe for homemade pickled onions is beyond simple, easy, and delicious!! I am totally in love with it. I am also totally in love with the color of this dish 😍. The shooting was kept slightly dark and simply so that the purple and pink can truly shine. None of the colors are edited. This is exactly how it looks like when you take the onions out of the fridge – yum!!!

Red onions scattered on a dark background

This recipe for pickled onions comes together in less than ten minutes. You simply mix water, white vine vinegar, salt, and agave nectar in a pot and bring it to a mild boil until the salt has dissolved. In the meantime, you finely cut your onions and add them to a sterilized glass jar. Fill the glass jar with water to the brim and let the onions sit overnight in the fridge. Done!!

Homemade Pickled Onions in a glass jar with a fork stuck into it

You can totally “play” with this pickled onions recipe. For example, you can use so many different spices to this recipe. Whole garlic cloves, pepper corns, or different herbs would all work well. This pickled onions quick recipe is just as quickly out of your fridge again because the entire household will simply gobble it up 🤣. That way, you can have a play around and make it your own every single time.

Homemade Pickled Onions in a glass jar with a fork taking out some of the onions, photographed from above

Why are these Homemade Pickled Onions good for you?


One of my favorite pre-biotic foods and vegetables!! I absolutely love onions. 😍 There is so much to say about onions that I could likely write an entire post… but let me point out some of the absolute highlights. Onions are stock-full of vitamin C. I bang on about this amazing vitamin a lot, but it bears repeating. Vitamin C is vital for our immune system and overall health. It also plays a key role in collage production. Collagen is one of the most abundant proteins in our bodies and aids in tissue repair. It also helps us to look younger as collagen and vitamin C are great defenders against premature aging and wrinkles. Vitamin C is also needed to support the absorption of iron, especially when said iron comes from plant-based sources. Last but not least – next to all these amazing benefits, vitamin C acts as a double-whammy, because it is also an antioxidant.

Onions contain about 25 different antioxidants all of the flavonoid kind. Red onions, especially, contain an antioxidant called “anthocyanin” which provides the deep purple color. Studies involving anthocyanins have been shown to correlate with a reduced risk of heart disease when consumed. This may be in part due their ability to reduce cholesterol levels and triglycerides. These antioxidants also have strong anti-inflammatory benefits, which may further reduce blood pressure and the potential risk of blood clots. Last but not least, anthocyanins may also protect against certain types of cancer, as well as diabetes. Not too bad for such a relatively cheap and easily accessible vegetable – right?!

Finely sliced onions on a dark plate with scattered red onions lying around

How can I adjust these Homemade Pickled Onions to my dietary requirements?

This recipe is gluten-free, nut-free, dairy-free, vegan, and paleo-friendly. It is therefore suitable for all dietary requirements.

Homemade Pickled Onions in a glass jar with a fork stuck into it

Other Recipes on the Blog that Work Well with these Homemade Pickled Onions

There are so many delicious recipe on the blog that would work super well with these homemade pickled onions. Be sure to check out the below:

Homemade pickled onions being taken out with a fork, photographed up close

And there you have it for this week! I hope you enjoy this recipe as much as we do over here 🥰. As always, please let me know how you are liking the recipe by either commenting below and/or rating the recipe. As always, thank you so much for your support and happy pickling!!!

Homemade Pickled Onions

Recipe by Ann Robejsek
5.0 from 1 vote
Course: Sides, Dips and Everything in BetweenCuisine: Pickling, fermentingDifficulty: Super easy


Prep time



These Homemade Pickled Onions are beyond easy to make, require only a few ingredients and are absolutely delicious. Enjoy!!


  • 2 medium -sized red onions

  • 1/2 cup (125 ml) water

  • 1/2 cup (125 ml) white wine vinegar

  • 2 tbsp agave nectar

  • 1 tbsp salt

How to

  • Sterilize a glass jar by washing it and adding boiling water to it
  • In a small pot mix the water, white wine vinegar, agave nectar, and salt. Bring to a boil until the salt has dissolved. Meanwhile, finely cut the red onion and add to the sterilized glass jar. Once the pickling juice is ready, pour on top so that the onions are covered under water. Seal and let sit in the fridge for a minimum of 2 hours but best overnight. The onions will keep for a minimum of two weeks (if they last that long), afterwards they slightly loose their crunch and taste. Enjoy!!


  • You can also use a different vinegar and sweetener, but the pickling juice will likely not be as clear and hence the onions will not look so pink in the glass jar.

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