Learn how to pickle vegetables and try this quick and easy pickled red onions recipe. Discover the health benefits of pickled vegetables and add this healthy and delicious side dish to your meals. Perfect for fall!

Pickled Red Onions – A Delicious and Healthy Addition to Your Meals
Fall is here and with it comes delicious seasonal ingredients to spice up our meals. Today I want to share a simple yet incredibly delicious recipe: pickled red onions. Not only do they add a wonderful tangy flavor to many dishes, but they are also healthy and full of nutrient-rich benefits.

Health Benefits of Onions
Let’s first talk about the health benefits of pickled vegetables and onions in particular. Onions are rich in antioxidants that can protect our cells from free radical damage. They also contain flavonoids, which can have anti-inflammatory effects and thus help strengthen our immune system.

Another health benefit of onions is their ability to support healthy cardiovascular system. Studies have shown that onions can lower cholesterol and regulate blood pressure, which reduces the risk of heart disease.

Ingredients for this recipe
Now, let’s get to the quick pickled red onion recipe. You’ll be surprised how easy it is to make them. Here are the ingredients you need:
- Onions (thinly sliced)
- Apple Cider Vinegar (unpasteurized)
- Water (hot)
- Agave syrup (or maple syrup)
- Sea salt
- Spices such as mustard seeds, coriander, fennel, dill, peppercorns, bay leaves or chili flakes

How to Pickle Red Onions
As always, I recommend watching the recipe video and these step-by-step instructions first. Then you can find the full recipe with exact measurements in the recipe card below!
- Place the onion slices in a clean jar. If desired, you can add different spices to flavor the pickled onions individually.
- Add the apple cider vinegar, water, maple syrup or agave syrup, and salt so that the onions are completely covered.
- Seal the jar tightly and let the pickled onions sit in the refrigerator for at least, ideally, 24 hours or just overnight to allow the flavors to fully develop.


Now you’re ready to enjoy your pickled red onions! They are a fantastic addition to salads, sandwiches, burgers or as a side dish to many savory dishes like kebab bowls. The sweet and sour taste will delight your taste buds and add a special flavor to your meals.

Health Benefits of Picked Vegetables
Pickled vegetables are generally a healthy addition to our diets. The fermentation process preserves important vitamins and minerals, and the probiotic cultures can support gut health. For more interesting information on fermenting, check out my kimchi recipe.
Pickled Red Onion FAQs:
How long do pickled red onions last?
Pickled onions can keep well sealed in the refrigerator for up to several weeks. However, it is important to make sure the jar and onions are clean and sterile to ensure a longer shelf life.
Can I use other types of onions?
Yes, you can use other types of onions such as white or yellow onions, instead of red onions. However, the taste may vary slightly.
How can I use pickled red onions?
Pickled red onions are extremely versatile. You can use them in salads, sandwiches, burgers, wraps, tacos, or as a side dish with grilled vegetables or meat alternatives. There are no limits to your creativity!
What spices or herbs can I add?
You can add different spices and herbs to pickled red onions to customize the flavor. Some popular options are garlic, peppercorns, bay leaves, thyme or coriander seeds.
Are pickled red onions healthy?
Yes, pickled red onions are healthy. Onions contain many health-promoting ingredients such as antioxidants and anti-inflammatory compounds. In addition, they can also promote digestion and strengthen the immune system.

This Pickled Red Onions recipe is:
- Plantbased & Vegan
- Healthy
- Gluten-free
- Soy-free
- Spicy
- Aromatic
- Nutritious
- Better than store-bought “Pickled Onions”.
- Perfect as a side dish for many vegan and vegetarian dishes!

Pickled Onions Serving Suggestions
Here are some examples of delicious recipes that you can serve with your pickled red onions:
- Gyros
- Veggie Burger
- Lahmacun
- Tacos
- Burrito Wraps
- Falafel Kebab
- Tofu Patties
- Vegan Cevapcici
- Pasta Salad
- Potato Salad
- Rice Salad
- Lentil Salad
- Buddha Bowl
- Grilled Cheese Sandwich
Recipe Video
If you try this pickled red onion recipe, feel free to leave me a comment and a star rating! And if you take a photo of your result and share it on Instagram or Facebook, please tag me @biancazapatka and use the hashtag #biancazapatka so I don’t miss your post! Have fun trying it out! 🙂

How to Pickle Red Onions
Author:Ingredients
- 2-3 red onions finely sliced
- ⅔ cup apple cider vinegar unpasteurized
- ¾ cup water boiled
- 2 tsp agave syrup or maple syrup
- 1 tsp sea salt
- 1 ½ tsp mustard seeds or other whole spices like coriander, fennel, peppercorns, dill
- 1-2 bay leaves
Instructions
*Note: Feel free to check out the recipe video + tips + step-by-step pictures above!
- Place all ingredients in a large, sterilized jar or screw-top jar, making sure the onions are completely covered with the liquid.
- Seal the jar tightly and refrigerate for at least 24 hours. Serve as desired with salads, sandwiches, burgers, wraps, tacos or as a side dish to many savory dishes like kebab bowls!
Notes
- Helpful tips, FAQ's (answers to frequently asked questions) and shelf life information are mentioned in the blog post above!
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