Keto Simple Syrup

Keto Simple Syrup

Prep: 5 mins

Cook: 10 mins

Cool: 30 mins

Total: 45 mins

Servings: 10 servings

Yield: 1 1/4 cups

Whether it’s lemonade or your favorite cocktails, many beverages rely on a sweetener like simple syrup. This can become a challenge when you’re reducing or eliminating sugar to follow a keto diet. However, there’s no need to skip the homemade drinks because it’s easy to make a sugar-free simple syrup.

Several sweeteners are designed to replace sugar, but not every one of those works well in simple syrup. Some, such as stevia, have a bitter taste that can throw off a drink’s balance of flavors. Erythritol and xylitol sweeteners (including those with monk fruit) do not dissolve well; they seem to work in a hot syrup but will crystalize once cooled. The solution to both of these issues is to use an allulose monk fruit sweetener.

Produced by a few companies, the allulose sweetener dissolves very well in hot and cold water. More importantly, the taste of monk fruit mimics the sweetness of regular sugar without a bitter aftertaste. When making a syrup, you simply have to use this sweetener as an equal-measure substitute for sugar in a standard simple syrup recipe.

There are many exciting possibilities for this zero-calorie simple syrup. For instance, you can add flavor and, in some cases, even use it to replace the sugary liqueurs often used in cocktails. It keeps well, so you can make a large batch and have it on hand whenever you want to make a sugar-free drink.


  • 1 cup water

  • 1 cup granulated allulose monk fruit sweetener

Steps to Make It

  1. Gather the ingredients.

    Keto Simple Syrup

  2. In a small saucepan, bring the water to a boil.

    Keto Simple Syrup

  3. Reduce the heat to a simmer and whisk in the sweetener until completely dissolved. Simmer for 5 minutes.

    Keto Simple Syrup

  4. Remove from the heat and let cool completely before transferring to a bottle with a tight sealing lid. Keep refrigerated and use within 2 weeks.

    Keto Simple Syrup

  5. Use in your favorite drinks and enjoy.

    Keto Simple Syrup

How to Use Keto Simple Syrup

Generally, this simple syrup can replace sugar syrup measure-for-measure in any drink recipe. As with any syrup, you might want to add a little more or less to drinks to adjust the sweetness to your taste. Use it as the base for homemade sodas, the sweetener for lemonade, or in any drink that calls for simple syrup, agave nectar, honey, or other liquid sweeteners.

Recipe Variations

Nutrition Facts
Servings: 10
Amount per serving
Calories 8
% Daily Value*
Total Fat 0g 0%
Saturated Fat 0g 0%
Cholesterol 0mg 0%
Sodium 1mg 0%
Total Carbohydrate 2g 1%
Dietary Fiber 0g 0%
Total Sugars 2g
Protein 0g
Vitamin C 0mg 0%
Calcium 1mg 0%
Iron 0mg 0%
Potassium 0mg 0%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.


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