Go Back Email Link
+ servings
Spoon dripping keto simple syrup into a small white dish next to a white cloth.
Print Recipe
5 from 3 votes

Keto Sugar-Free Simple Syrup Recipe

Loaded with sweetness but no added sugars, this Keto Sugar-Free Simple Syrup Recipe is so easy! Perfect for a sweet treat on the keto diet, this liquid sweetener is the best way to sweeten and add flavor to your favorite cocktails, and hot keto drinks, or make it into pancake syrup for breakfast!
Cook Time5 minutes
Total Time5 minutes
Course: Keto
Cuisine: American
Keyword: allulose, drinks, erythritol, keto sweetener, keto syrup, low carb, pancakes, simple syrup, xylitol
Servings: 16 Servings
Calories: 0.2kcal

Ingredients

For Erythritol and Xylitol

  • 1/2 cup sweetener
  • 1/8 teaspoon xanthan gum optional for thicker syrup
  • 1 cup water
  • 10-20 drops liquid sweetener

For Allulose

  • 1/2 cup allulose
  • 1/2 cup water
  • 1/8 teaspoon xanthan gum optional for thicker syrup

Instructions

Erythritol

  • Begin by mixing the erythritol with the xanthan gum. This minimized lumps later as xanthan gum tends to be a little clumpy.
    Mixing xanthan gum with sweetener.
  • Carefully add the erythritol and xanthan mixture to a small saucepan along with the water, and turn on the heat.
    Adding water and erythritol to a pot.
  • There is no need to mix it yet, just allow it to heat up and you will see the erythritol beginning to melt.
    Erythritol melting in a pot.
  • Bring the saucepan up to a boil, and allow it to boil for 1 minute, whisking as it boils.
  • Remove the pot from the heat, place a lid on top, and allow the keto simple syrup to cool to room temperature before storing or using. *see note 4
    A lid on a pot of water and sweetener.

Xylitol

  • Begin by mixing the xylitol with the xanthan gum. This minimized lumps later as xanthan gum tends to be a little clumpy.
  • Carefully add the xylitol and xanthan mixture to a small saucepan along with the water, and turn on the heat. Try your best to keep the xylitol crystals in the water and not on the sides of the saucepan.
  • Do not mix it, just allow it to heat up and you will see the xylitol beginning to melt.
  • Bring the saucepan up to a boil, cover it with a lid, and allow it to boil for 1 minute.
  • Remove the pot from the heat, keep the lid on top, and allow the keto simple syrup to cool to room temperature before storing or using. *see notes for storage instructions

Allulose

  • Begin by mixing the allulose with the xanthan gum. This minimized lumps later as xanthan gum tends to be a little clumpy.
  • Add the allulose and xanthan mixture to a small saucepan along with the water, and turn on the heat.
  • Bring the saucepan up to a boil, reduce the heat, and stir it frequently as it simmers for 5 minutes.
  • Remove the pot from the heat, and allow the keto syrup to cool to room temperature before storing or using. *see notes for storage instructions

Notes

  1. Pet safety: Xylitol is not safe for dogs so keep this away from your furry friends! There isn't enough evidence to tell whether or not it's safe for cats or other pets, so it's best to keep it away from them as well.
  2. Putting a lid on it: This is an important step for erythritol and xylitol. The lid creates steam within the pot, which will gather any rogue sweetener crystals that are on the sides of the pot and drip them back into the liquid. Why does this matter? If the liquid comes into contact with one piece of granulated sweetener, it will recrystallize leaving you with a gritty syrup.
  3. Cooling: Allow the syrup to cool naturally to room temperature. Crystallizing can happen if it is cooled too quickly.
  4. Storing erythritol: Erythritol is a little fragile when it comes to liquid form, and refrigerating it will usually cause crystalization in my experience. Keep it at room temperature for the best results.
  5. Cloudy color: The sugar free keto simple syrup will most likely have a cloudiness to it and not be crystal clear like regular simple syrup. This is because the xanthan gum makes it a little cloudy. It's perfectly safe and still delicious!

Storage instructions

All 3 versions of this recipe should be stored in an airtight container like a jar.
  • Erythritol: Store at room temperature for up to 2 weeks.
  • Xylitol and Allulose: Store in the fridge for up to 2 weeks.

Nutrition

Serving: 1g | Calories: 0.2kcal | Carbohydrates: 0.04g | Sodium: 2mg | Potassium: 0.2mg | Fiber: 0.04g | Calcium: 1mg