Pickled Red Onions

The simplest, delicious pickled red onions are made with red onions, apple cider vinegar, water, sea salt, and a hint of maple syrup. This condiment adds a burst of flavor to salads, tacos, rice bowls and sandwiches.

pickled red onions in white bowl

This is my favorite way to make pickled red onions. It only takes 5 minutes! I prefer to use Apple Cider Vinegar for it’s additional health benefits, however, you can use any white vinegar you prefer.

To make pickled red onions you will need 5 basic ingredients: red onions, apple cider vinegar (or vinegar of choice), maple syrup (or honey), sea salt and water.

First, thinly slice onions and place them into a pint-sized mason jar. Be sure to compress them down into the jar.

    raw red onions thinly sliced in mason jars

    Then heat the vinegar, water, maple syrup and sea salt over medium heat until salt is dissolved, stirring occasionally.

    Pour the brine into the mason jar over the raw onions. Press the onions into the brine until submerged.

    Allow the jars to cool to room temperature before placing into the fridge.

    The onions will turn bright pink and soften. They should be ready to eat within an hour and will keep in the refrigerator for up to 2 weeks.

    Feel free to add some red pepper flakes for extra spice.

    • Add them to a salad
    • Tacos, tacos, tacos!
    • Throw them on a sandwich or into a wrap
    • Rice bows (or cauliflower rice bowls)
    • Smother a burger with them
    • Add as a side to any Mexican dish

    Pickled onions can be made with any vinegar depending on your taste preference. I choose apple cider vinegar with the mother for its extra health benefits. Please be sure to choose organic, unfiltered apple cider vinegar, containing the mother, a substance with protein strands, enzymes, and good bacteria. The “mother” is what provides the additional health benefits.

    • May help lower blood sugar levels and prevent or help manage diabetes. A 2019 clinical trial suggests apple vinegar consumption helps to control the bodies’ blood sugar response to high glycemic foods. A meta-analysis study also found that ACV consumption may benefit glycemic status in adults and support cardiovascular fitness.
    • Aid in weight loss. Several human studies show that vinegar can increase feelings of fullness. This can lead to eating fewer calories and losing weight.
    • May improve cardiovascular health due to its effects on cholesterol levels.
    • Positive effects on metabolism and fat burning due to its acetic acid content. Acetic acid supports reducing blood pressure and blood sugar levels as well as decreased inflammation and improved healthy gut bacteria.
    Pickled red onions in white bowl

    Pickled Red Onions

    The simplest, delicious pickled red onions are made with red onions, apple cider vinegar, water, sea salt, and a hint of maple syrup.
    Prep Time 7 minutes
    Course Condiment, vegetables


    • 1 Red onion (thinly sliced)
    • 1/2 cup Apple cider vinegar
    • 1/2 cup water
    • 1/2 TBSP Maple Syrup
    • 1 Tsp Sea salt


    • Thinly slice red onion and compress into pint-sized (wide mouth) glass jar.
    • Combine vinegar, water, salt and maple syrup in small pot and heat, stirring occasionally, until salt is dissolved.
    • Pour over sliced onions in a glass jar
    • Let sit for about 45 minutes until close to room temperature then place in fridge for up to 2 weeks
    • Pickled red onions are ready to eat after being cooled for about an hour. They should turn bright pink and soften.


    Add some red pepper flakes for extra spice!
    Tried this recipe?Let us know how it was!
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