Making a homemade Low Carb Simple Syrup is quick and easy and can be used with many hot or cold beverages. It can also be used to moisten low carb cakes or as a topping on desserts.
Using allulose in this recipe easily dissolves in the hot water and makes this liquid gold syrup a perfect option for low carb, keto and diabetic friendly diets.
A Quick Look at the Recipe
✅ Recipe Name: Low Carb Simple Syrup
🕒 Ready In: 15 minutes
👪 Serves: 10 servings
🍽 Calories: 1 | Protein: 0g | Carbs: 0g | Sugar: 0g
🥣 Main Ingredients: sweetener, water, xanthan gum
📖 Dietary Info: low carb, sugar free
👌 Difficulty: Easy
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Jump To:
- A Quick Look at the Recipe
- What Is Low Carb Simple Syrup?
- Why do people make low carb simple syrup?
- Best Sweeteners for Low Carb Simple Syrup
- Ingredient notes
- Steps by step instructions
- Recipe tips
- 🍴 More diabetic friendly recipes
- Flavored Low Carb Simple Syrup Variations
- Best Uses: Cocktails, Coffee, Desserts
- Storage Tips
- 💭 Frequently asked questions
- 🍽 Other low carb recipes you may like
- Recipe Card
- Low Carb Simple Syrup
What Is Low Carb Simple Syrup?
- Low carb simple syrup is a zero-carb sweetener made from sugar substitutes, water, and xanthan gum.
- Unlike regular simple syrup (pure sugar + carbs), this keto-friendly simple syrup delivers identical sweetness and texture with zero carbohydrates and no blood sugar spikes.
- Simple formula: Sweetener, water and thickener = zero carbs + real syrup taste.
Why do people make low carb simple syrup?
- Diabetes management: Non-glycemic sweeteners keep blood sugar stable while enjoying flavored drinks.
- Keto diets: One tablespoon of regular syrup uses your entire daily carb allowance. Keto syrup lets you enjoy cocktails and coffee without breaking ketosis.
- Health-conscious eating: Homemade low carb simple syrup recipes skip artificial additives, giving complete ingredient control.
Best Sweeteners for Low Carb Simple Syrup
Choosing the right sweetener for low carb syrup determines taste and aftertaste. Here's the best sweetener for simple syrup by type.
Allulose (Best All-Rounder): Tastes like sugar, zero aftertaste. Best for keto sweetener syrups and cocktails. Most expensive.
Erythritol (Most Accessible): Cheapest sugar alcohol for syrup. Slight cooling aftertaste, pair with stevia to fix.
Monk Fruit (Cleanest Option): Ultra-clean, natural, zero aftertaste. Potent, blend with allulose for balance.
Stevia (Strongest Sweetness): 200-300% sweetness. Bitter aftertaste alone, use only 5-10 drops in low carb simple syrup recipes.
Pro Tip: Blend monk fruit and allulose for zero aftertaste. This is the best sweetener combination for low carb simple syrup if the budget allows.
Ingredient notes
Made with water, allulose, stevia and xanthan gum, this recipe is quick and so simple to make.
- Allulose: this is my favourite sweetener as I find it is the closest sweetener to sugar and as a type 2 diabetic, it does not seem to spike my blood sugars.
- Stevia: just a few drops are used in this recipe to balance out the allulose
- Xanthan Gum: This will help thicken the simple syrup and will thicken even more once cooled.
- Shop for all three products on Amazon:
Steps by step instructions
How to make the Low Carb Simple Syrup
- STEP 1: add water and allulose to a small saucepan on medium heat and whisk until dissolved. Allow to simmer for 2 minutes.
- STEP 2: add ¼ teaspoon of Xanthan Gum and whisk vigorously until dissolved, add 5-10 drops of liquid stevia, whisk and allow to simmer for 2-4 minutes.
- STEP 3: remove from heat and allow to cool before pouring into an airtight mason jar
Recipe tips
Consistency varies by sweetener type. Allulose-based syrup stays liquid longer. Erythritol syrups thicken faster. Adjust xanthan gum by ⅛ teaspoon increments.
What to Do If Syrup Is Too Thin or Too Thick
- Too thin: Add ⅛ teaspoon xanthan gum, whisk thoroughly.
- Too thick: Add 1 tablespoon water, stir until smooth.
Temperature & Humidity Effects on Texture
- Heat makes syrup thinner.
- Humidity affects crystallization.
- Store in cool, dry place.
- Refrigerate for best texture consistency in homemade low carb syrup.
🍴 More diabetic friendly recipes
Flavored Low Carb Simple Syrup Variations
Add flavor to homemade low carb syrup with extracts, infusions, and spices.
- Vanilla Bean Syrup: Add 1 teaspoon vanilla extract to the cooled base. Best vanilla low carb syrup for coffee and desserts.
- Salted Caramel Syrup: Mix ½ teaspoon caramel extract and ¼ teaspoon sea salt. Creates keto caramel syrup for cocktails and ice cream.
- Chocolate Syrup: Add 1 tablespoon unsweetened cocoa powder plus ½ teaspoon vanilla. Stir until smooth for low carb chocolate syrup.
- Fruit-Infused Syrups: Steep fresh or frozen berries in warm syrup for 10 minutes, strain. Try blueberry, strawberry, or lemon for sugar-free fruit syrup variations.
- Coffee & Mocha Syrups: Add 1 tablespoon brewed espresso to cooled base for coffee low carb syrup. Add cocoa powder for mocha version.
- Infusion Methods & Timing: Extract method: Add ½ to 1 teaspoon extract after cooling (fastest).
- Steep method: Add fresh ingredients to warm syrup, let sit 10-15 minutes, strain.
- Spice method: Simmer cinnamon sticks or vanilla beans in water before adding sweetener.
Best Uses: Cocktails, Coffee, Desserts
Low carb simple syrup works for drinks, desserts, and breakfast.
Low-Carb Cocktail Recipes: Use keto cocktail syrup in mojitos, margaritas, and cosmopolitans. Start with ½ oz syrup per drink, adjust to taste. Try my Low Carb Margarita Cocktail recipe.
Coffee Drinks: Add 1-2 tablespoon to lattes, iced coffee, and cold brew for low carb coffee syrup. Creates smooth sweetness without sugar spikes. Use it to sweeten this Maple Peanut Butter Coffee.
Sugar-Free Dessert Applications: Use homemade low carb syrup as a glaze for cheesecake, a topping for ice cream, or a sauce for berries. Works 1:1 with regular syrup in most recipes.
Breakfast Dishes: Drizzle on Protein Powder Pancakes or these Protein Powder Waffles.
Storage Tips
Proper storage keeps homemade low carb syrup fresh and usable.
- Room temp: Best for short-term. Lasts 2 weeks in cool, dark place.
- Refrigerator: Best for regular use. Lasts 1 month in low carb simple syrup storage.
- Freezer: Best long-term. Lasts 6-8 months. Syrup won't fully freeze due to sweeteners.
💭 Frequently asked questions
Allulose tastes like sugar with zero aftertaste. Monk fruit is cheaper but potent. Blend both 1:1 for the best sweetener for simple syrup. You get perfect taste, texture, and no aftertaste. This is the best sugar substitute for syrup.
Have you ever tried to make an iced coffee with regular granulated sweetener and it sinks to the bottom of the glass? Think of simple syrup as a liquid sweetener that will mix better in your beverages instead of finding it at the bottom once you are done the drink.
Erythritol crystallizes most easily, especially in cold temps or high humidity. Allulose and monk fruit crystallize less. Prevent it by storing in warm, dry places and adding xanthan gum to your low carb simple syrup recipe. If it crystallizes, reheat gently and stir.
Since I am a type 2 diabetic, I did test and did not notice any spikes two hours after consuming a cocktail with low carb simple sugar in it. However, I would only use this in moderation and you should always check your blood sugars to see how it affects you. I use a Fora 6 Connect glucose monitor to check my blood sugars.
🍽 Other low carb recipes you may like
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Recipe Card
Low Carb Simple Syrup
RECIPE VIDEO
Ingredients
- 1 cup water
- ½ cup sweetener
- ¼ teaspoon xanthan gum
- 5-10 drops liquid stevia I used 5 drops
Instructions
- In a small saucepan on medium heat, bring water to a boil, add allulose and whisk until completely dissolved.
- add xanthan gum and whisk vigorously to ensure there are no lumps and it is well incorporated. Allow to simmer for 2 minutes
- add stevia drops and whisk again
- remove from heat and allow to cool before pouring into a bottle or mason jar.
- (Refer to the video instructions below if further clarification is needed)
Notes
- Continuously whisk in the sauce pan to help all ingredients to dissolve.
- If it does not appear to be thick, allow it cool in the fridge as it should thicken up.
Important Information
For more information, tips and variations please review the recipe video and content above and below the recipe card.
Updates and Revisions
If the video and recipe card differ, follow the recipe card for the latest ingredients and instructions.
Nutritional Information
Nutrition info is estimated and varies by ingredients, measurements, and portions.
Oscar Chimenti says
This is perfect liquid gold for those beverages that require a simple syrup. Sugar free and low carb!