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Sugar Free Pickled Red Onions

We just made some fantastic Sugar Free Pickled Red Onions!!

I love to add these sugar free pickled red onions as a topping on our low carb chorizo avocado tacos! Take a look! We used a low carb tortilla, guacamole, cooked beef chorizo, shredded jalapeno mozzarella cheese, cilantro, green salsa, sour cream, and crumble Queso Fresco. We also included a poached egg on this taco sometimes too! It’s loaded with flavor and the sugar free pickled red onions topped complete this taco!

Red onions in a mason jar
Jar with onions with a plant in the background
Taco topped with red onions on a blue plate

How to make Sugar Free Pickled Red Onions

It’s as easy as adding all the ingredients in a sauce pan and heating it up. The hardest and most time consuming part about this recipe is cutting the red onion.

Sugar Free Pickled Red Onions Ingredients

1 large red onion, thinly sliced
1 1/4 cup apple cider vinegar
3/4 cup water
1/3 cup allulose keto friendly sweetener
1 tablespoon Pink Himalayan salt
Pinch crushed red pepper flakes (optional)

Sugar Free Pickled Red Onions Instructions

Get the full recipe instructions in the printable recipe card below.

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You can double or triple this recipe as needed.

Goes great as a topping on various salads including taco salads bowls, and tacos!

Here are a few photos we took of this process:

Half of a red onion cut
Raw Red Onions sliced thin

Here’s a trick to help your eyes not start watering while you are cutting onions.  Place a moist wet dish cloth next to the onions you cut.  Cut onions are attracted to moisture so instead of the fumes getting to your eyes they will hit the dish cloth first.

Tips

You can use this red onion recipe on sandwiches, nachos, burgers, burritos, wraps, on street tacos, or even taco salad bowls!

Store this pickled onion recipe in the fridge in a mason jar or airtight container and use as needed. They will stay fresh in the refrigerator for up to 3 weeks.

Dish towel next to cut red onions
Cut red onions in a jar
Pouring pickling juice into a mason jar filled with red onions
3 jars of sugar free red pickled onions

Frequently Asked Questions

How do you cut the vinegar taste in pickled onions?

Shockingly, the vinegar taste in these pickled onions is mild. While these are sugar free, the sweetness from the allulose sweetener may have helped to balance out the acidity and mellow out the overall flavor.

Are pickled red onions healthy?

Pickled red onions can be a healthy addition to your diet, as they are low in calories, fat-free, and contain some beneficial nutrients.

Can you substitute apple cider vinegar be substituted for white vinegar in sugar free pickled onions?

Yes, apple cider vinegar can be substituted for white vinegar in sugar-free pickled onions. I, personally prefer the flavor of apple cider vinegar in my pickled onions as it has a slightly sweeter and fruitier taste than white vinegar. When substituting apple cider vinegar for white vinegar, use the same amount called for in the recipe and adjust to taste as needed.

Are sugar free pickled onions gluten free?

Yes, they are! If you are sensitive to gluten or have celiac disease, it’s best to consult with a healthcare professional or a registered dietitian to ensure that the pickled onions you are consuming are safe for your dietary needs.

Will my red onions have a crunchy texture after pickling?

The texture of pickled red onions can vary depending on a few factors, such as the thickness of the onion slices, the type of vinegar used, and how long they are left to pickle. In general, pickled onions will have a softer texture than fresh raw onions due to the acidity in the pickling liquid.

Red onions in a mason jar

Sugar Free Pickled Red Onions

Delicious and tasty red onions that go great on tacos!
4.46 from 11 votes

Equipment

  • Large Mason Jar
  • Sause Pan
  • Funnel
  • Glass measuring cup

Ingredients
  

Instructions
 

  • Slice the red onion thin.
  • Place onion a large Mason jar with a tight-fitting lid.
  • In a medium saucepan over medium heat, bring apple cider vinegar, water, allulose keto friendly sweetener, and pink salt to a boil. This will dissolve the allulose and salt.
  • Stir until everything is dissolved. Add in red pepper flakes, if using.
  • Use a funnel or a measuring cup with a spout and pour the hot mixture over onions in the mason jar. Fill it completely until it covers all the onions.
  • Let the mason jar cool to room temperature and then place lid on it and refrigerate.
  • Refrigerate it for a minimum of 2 hours before using.
  • These sugar free pickled red onions will keep in refrigerator for up to 1 month. (Ours never last that long!)

Notes

You can double or triple this recipe as needed.
Goes great as a topping on various salads including taco salads bowls, and tacos!
Nutrition facts are provided as a courtesy. Have a question about our calculations or why you got a different result? Please read our nutrition policy.
Tried this recipe?Mention @KetoFriendlyRecipes or tag #KetoFriendlyRecipes!

We made our chorizo avocado tacos too!  Take a look!

Oh, btw, you can make your own Low Carb Tortilla with this recipe too:  https://lowcarbinspirations.com/low-carb-tortilla-recipe-flour-tortilla-substitute/ 

Or you can purchase low carb tortillas at your local grocery store.  They are not 100% keto but they are definitely low carb and within keto limits unless you look at the ingredients.  If you are strict keto, them make my tortilla recipe.

Tortilla on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco on a blue plate
Taco with pickled red onions on a blue plate

Be sure to pin this recipe to Pinterest for later!

Taco topped with red onions on a blue plate

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