Sugar-free vanilla syrup in a Mason jar.

Sugar-Free Vanilla Syrup

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Sugar-free vanilla syrup is a healthy, easy-to-make syrup that is perfect for coffee. A lot of people are weary of sugar-free syrups. But even though traditional vanilla syrup is delicious it is loaded with a ton of sugar. One serving of sugar-free vanilla has 20 grams of sugar.

In contrast, sugar-free vanilla syrup has 0 grams of sugar. Therefore, it is a healthier alternative to traditional vanilla syrup. Plus, it is infused with a real vanilla bean, which gives it so much flavor. 

Can I Use Vanilla Extract Instead Of Vanilla Syrup In Coffee

Do not add vanilla extract to your coffee in place of vanilla syrup. Vanilla syrup has a thicker consistency and a sweeter flavor than vanilla extract. In contrast, vanilla extract has a thinner consistency and a bitter flavor. So do not add it to your coffee unless you want to ruin it.

Can I Use Vanilla Extract Instead Of Vanilla Bean To Make Vanilla Syrup 

Vanilla beans are expensive, so you can use vanilla extract or vanilla bean paste if you do not have them. 

If you are using vanilla extract, use pure vanilla extract. It has a better, stronger flavor. 

Additionally, heat the sugar-free sweetener and water first. Once the sugar-free sweetener dissolves and the syrup is warm, add 1 tablespoon of vanilla extract and stir to combine.

If you are using vanilla bean paste, add 1 tablespoon of vanilla bean paste after the sugar-free sweetener is dissolved and the sugar-free vanilla syrup is warm.  

Is Vanilla Syrup Supposed To Be Thick

Vanilla syrup should not be so thick that it’s hard to pour out of the bottle. It should easily flow out of the jar. 

If your syrup is extremely thick and has a sticky texture, you may have cooked it at a temperature that was too high or cooked it for too long. You can thin the syrup out by placing it over low heat and stirring in water 1/2 tablespoon at a time until it reaches your desired consistency.

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Why Is My Sugar-Free Vanilla Syrup Clumpy

If you use an erythritol-based sugar-free sweetener, you will likely notice clumps of sugar-free sweetener floating on the bottom of the container. This is called crystallization. Crystallization is frustrating, but there are a few ways you can prevent it from happening.

  1. Use two parts water and 1 part sugar-free sweetener. The syrup will crystalize if you do not use the wrong proportion of ingredients. For example, this vanilla syrup recipe calls for 1/2 cup of sugar-free sweetener and 1 cup of water. So it is less likely to have clumps of sugar-free sweetener in it.
  2. Use distilled water to make your syrup. It can decrease the chances that crystallization occurs if you follow steps 1 and 5. 
  3. Add xanthan gum. It is a thickener that gives the sugar-free vanilla syrup the consistency we are used to. Xanthan gum can prohibit crystallization to some extent, but only if you follow step 1. 
  4. Heat the syrup over medium-low heat just until the sugar-free sweetener dissolves. Do not cook the sugar-free vanilla syrup longer than necessary. You do not need to let the vanilla syrup boil.
  5. Do not store store your syrup in the fridge. It is heated and then cooled to room temperature. If you store the syrup in the cold fridge, it will crystallize. 

How Long Does Vanilla Syrup Last

If it is stored in an airtight container, vanilla syrup will last for 2-3 days at room temperature.

How To Use Vanilla Syrup 

There are many ways you can use this syrup. You can add it to your vanilla latte or other caffeinated drinks. However, you can also add it to lemonade, mocktails, or cocktails. 

You can also drizzle a bit of the syrup over pancakes or gluten-free waffles or add it to a smoothie or yogurt bowl. The ways to use this syrup are endless.

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Sugar-Free Vanilla Syrup

Recipe by Sarah
0.0 from 0 votes
Course: UncategorizedDifficulty: Easy


Prep time


Cooking time




Total time



You do not have to buy store-bought sugar-free vanilla syrup anymore. You can make it at home. All you need to make the syrup are 3 ingredients: sugar-free sweetener, water, and a vanilla bean. You will end up with a cup of delicious vanilla syrup to add to your coffees, drinks, pancakes, and so much more.

Cook Mode

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  • 1 cup water

  • 1/2 cup sugar-free sweetener

  • 1 vanilla bean, cut in half


  • Place the water, sugar-free sweetener, and vanilla bean into a small pot.
  • Place it over medium-high heat and heat, stirring frequently, until the sugar-free sweetener dissolves. Do not let the vanilla syrup boil, or the amount of water in the syrup will decrease.
  • Let the vanilla syrup cook for 1 minute, then remove it from the heat.
  • Let the vanilla syrup cool for 5 minutes. Transfer it to a mason jar or airtight bottle.
  • Store it at room temperature for 1-2 days.

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Nutrition Facts

4 servings per container

  • Amount Per ServingCalories0
  • % Daily Value *
  • Total Fat 0g 0%
    • Saturated Fat 0g 0%
    • Trans Fat g
  • Cholesterol 0mg 0%
  • Sodium 170mg 8%
  • Potassium 1mg 1%
  • Total Carbohydrate 0g 0%
    • Dietary Fiber 0g 0%
    • Sugars 0g
  • Protein 0g 0%

  • Calcium 2%

* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.


  • Sarah

    Hello. Welcome to my food blog! I am a recipe developer/content writer and creator. Food is universal. Its more than something you eat. Food is an experience that can be enjoyed alone or with others. It can affect your physical health and your mood. I love food and I believe it affects how we feel which is why I started this blog that provides you with delicious healthy recipes, useful tips and tricks, guides, and informative articles.

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