Sugar-Free Quick Pickled Red Onions Recipe for Tangy Flavor

Making pickled red onions without sugar is simple and rewarding — once you try them, you’ll likely keep a jar in your fridge all the time.

Quick pickled onions brighten salads, sandwiches, tacos and more, and they’re effortless to prepare. Many recipes call for a little sugar, but it isn’t necessary. I prefer a more pronounced vinegar tang, and this version relies on just a few core ingredients plus salt and pepper.

Pickled Onions Without Sugar
Pickled Red Onions Without Sugar

How to Make Pickled Onions Without Using Sugar

Start by choosing your vinegar. Because this recipe skips sugar, apple cider vinegar is a great choice: it adds a subtle fruity note that balances the sharpness of the onions more gently than plain white or wine vinegar.

Key ingredients for this pickled onions recipe
Key ingredients for this recipe

In a small saucepan, combine equal parts vinegar and water. Diluting the vinegar is important — undiluted vinegar can be overpowering even if you enjoy sour flavors. Season the mixture with a few generous pinches of salt and several grinds of black pepper. Heat over medium until it comes to a gentle simmer.

Vinegar mixture for pickling
Diluted vinegar mixture for pickling

While the liquid heats, prepare the onions. You don’t need special tools — a sharp knife is all that’s required. Trim the top of the onion, cut it in half through the root to create a stable flat surface, then peel. Lay each half flat-side down and thinly slice toward the root to create even slices.

Add the sliced onions to a large, heatproof jar. A wide-mouth jar works best for easy filling and shaking.

Adding the sliced onions to a jar
Adding the sliced onions to a jar

When the vinegar mixture reaches a simmer, carefully pour it over the onions so they are fully covered. Seal the jar and give it a good shake to distribute the liquid and seasoning evenly. Let the jar sit until the contents cool to room temperature.

You can eat the onions once they’ve cooled, but they develop better flavor after a few hours in the fridge. They keep for a long time in refrigeration, though most jars are gone before you can test their maximum shelf life.

Covering the onions with vinegar
Covering the onions with vinegar

These pickled onions are versatile: try them on tacos, grilled fish, salads, sandwiches, burgers or grain bowls for a bright, acidic contrast. The same quick-pickling method also works well for other vegetables if you want to experiment.

Pickled Onions Without Sugar

Pickled Red Onions Without Sugar

These pickled onions are quick to make and add brightness to countless dishes.
Servings
20
Prep Time
5
Additional Time
30
Total Time
40

Ingredients

  • 250 ml
    (1 cup)
    apple cider vinegar
  • 2
    large red onions thinly sliced

Instructions

  • In a small saucepan, add the vinegar along with 250ml (1 cup) of water. Season with a generous pinch of salt and a few grinds of black pepper. Set over medium heat and bring to a simmer.
    Vinegar mixture for pickling
  • Place the onion slices in a large heatproof jar. Carefully pour the hot vinegar mixture over the onions, seal the jar, and shake to ensure the onions are fully coated.
    Covering the onions with vinegar
  • Let the jar cool to room temperature, then refrigerate. The onions can be eaten once cool, but their flavor improves after a few hours. Store in the fridge; they will keep well.

Video

Nutrition

Calories: 7kcal
|
Carbohydrates: 1g

Disclaimer: Nutritional information is automatically generated and provided as guidance only. Accuracy is not guaranteed.


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Pickling red onions this way is fast and fuss-free, and the result is a versatile condiment you’ll reach for again and again.

Have questions about the method or want tips for variations? Leave a comment and I’ll help.

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