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close up of pickled onions

Sweet and Spicy Pickled Red Onions (Sugar-free)

Sweet and spicy pickled red onions, ready in just 15 minutes and no sugar recipe These pickled red onions taste great with a little crunch
5 from 1 vote
Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins
Course Side Dish
Cuisine American, Mexican
Servings 16 servings
Calories 6 kcal


  • Pint jar


  • 1 red onion thinly sliced
  • ¾ cup water
  • ¾ cup distilled white vinegar substitute with wine vinegar or ACV
  • 4 garlic
  • 1 teaspoon chili flakes adjust as per taste
  • 2.5 tablespoon monkfruit use any sugar free susbtitue
  • 2.5 teaspoon salt


  • slice onions as thin as possible so that they can absorb pickling liquid. Transfer these sliced onions to a jar. 
    1 red onion
    transferring sliced onions in a pint jar
  • In a saucepan add water, vinegar, salt, monk fruit, and heat enough until the monk fruit is dissolved. Pour it into the jar filled with sliced onion, chili flakes & garlic pods.
    Let it come at room temperature.
    ¾ cup water, ¾ cup distilled white vinegar, 1 teaspoon chili flakes, 2.5 tablespoon monkfruit, 2.5 teaspoon salt, 4 garlic
    add vinegar, salt, water and monk fruit in a sauce pan
  • Once cool down, close the lid. Refrigerate it for 30 mins before serving.
    brine is boiled and ready to transfer in onions filled jar


  • If you like to have mild spicy then use black peppercorn in place of chili flakes. Other flavors could be a bay leaf, star anise, and any fresh herbs.
  • The same recipe will work for other onions variety as well.
  • If distilled white vinegar is not available then replace it with apple cider vinegar, wine vinegar, or simple lemon juice. Flavors may change depending on the vinegar used each time.


Calories: 6kcalCarbohydrates: 1gProtein: 1gFat: 1gSaturated Fat: 1gSodium: 367mgPotassium: 16mgFiber: 1gSugar: 1gVitamin A: 37IUVitamin C: 1mgCalcium: 5mgIron: 1mg
Tried this recipe?Mention @fitmealideas20 or tag #fitmealideas20. I would LOVE to see your creations!