Copycat Starbucks Sugar-Free Vanilla Syrup

Make your favourite Starbucks sugar-free drinks at home with this easy homemade sugar-free vanilla simple syrup. Perfect for iced coffees, lattes, teas, and homemade frappes – with zero sugar and loads of sweet vanilla flavour.

Easy, homemade Copycat Starbucks Sugar-Free Vanilla Syrup.

This Copycat Starbucks Sugar-Free Vanilla Syrup makes it easy and affordable to recreate your favourite coffee shop drinks at home. Savour that first-sip feeling anytime with this quick and easy homemade vanilla simple syrup. It’s smooth, sweet, and completely sugar-free. It works in hot or iced drinks and blends perfectly into coffee, tea, or milk.

Recreate your favourite coffee shop drinks at home with this sugar-free vanilla syrup.

Why you’ll love this Sugar-Free Vanilla Syrup

  • 0g Sugar! Enjoy coffeehouse sweetness without spiking blood sugar or adding carbs.
  • Budget-friendly. This homemade sugar-free vanilla syrup costs a fraction of store-bought syrups and you control the ingredients.
  • Endlessly customizable. Use this sugar-free syrup recipe as a base and easily create all your favourite Starbucks syrup flavours at home.
Smooth, sweet, and completely sugar-free vanilla syrup, just like Starbucks.

Key Ingredients for Sugar-Free Vanilla Syrup

  • Water: Use filtered or good-tasting tap water for the cleanest flavour.
  • Sweetener: Liquid monk fruit sweetener keeps this syrup smooth, sugar-free, and keto-friendly. You could also use liquid allulose, erythritol, or stevia drops to taste. Granulated sugar substitutes can crystallize once cooled, so liquid sweeteners will work best here.
  • Vanilla: For classic Starbucks-style vanilla syrup, use pure vanilla extract. Or try vanilla bean paste for an even richer flavour.
  • Thickener (xanthan gum): A tiny amount thickens the syrup and gives it a smooth, syrupy texture.
Copycat Starbucks Sugar-Free Vanilla Syrup, made with only 4 ingredients.

Sugar-Free Syrup Variations

  • Classic: Skip the vanilla for a classic, sweet simple syrup.
  • Cinnamon Dolce: Add 2 cinnamon sticks while simmering for a cozy sweet cinnamon syrup.
  • Peppermint: Use pure peppermint extract to create the perfect syrup for holiday lattes, mochas, and hot chocolate.
  • Caramel: Combine pure vanilla and caramel extract for a caramel syrup perfect for macchiatos.
  • Coffee: Swap the water for brewed coffee and keep the vanilla extract for a rich, café-style syrup that adds depth to homemade frappes and iced coffees.

How to make Sugar-Free Vanilla Syrup

Blend together all the ingredients in a pot and bring to a simmer over medium heat. Reduce the heat to medium-low and simmer for 10 minutes, until slightly thickened. Remove the pot from the heat and allow the syrup to cool for 30 minutes. Strain the syrup through a fine-mesh sieve and pour into a glass jar.

Easy, low-carb and keto-friendly sugar-free vanilla syrup perfect for coffee, tea, and milk.

Serving + Storage Tips

With this syrup on hand, you can recreate your favourite Starbucks sugar-free drinks at home. Store it in a sealed jar or bottle in the refrigerator for up to 3 weeks. Use ½ tablespoon of syrup for every 1 cup of coffee, tea, or milk. Add more for extra sweetness, especially in iced drinks where the flavour intensity softens.

Try it in:

  • Vanilla Latte: Add it to a latte made with your favourite milk or keto milk substitute.
  • Iced Vanilla Coffee: Sweeten strong-brewed coffee over ice for a simple, refreshing pick-me-up.
  • Vanilla Cold Foam Cold Brew: Whip a splash of syrup into heavy cream and spoon over cold brew.
  • Vanilla Frappé: Blend brewed coffee, ice, a splash of cream, and syrup until frosty and smooth.
  • London Fog: Stir into Earl Grey tea with a splash of cream for a warm, cozy drink.
  • Vanilla Chai Latte: Sweeten chai tea for gentle vanilla warmth.

Like this recipe? Pin it for later!

Copycat Starbucks Sugar-Free Vanilla Syrup

Make your favourite Starbucks drinks at home with this easy homemade sugar-free vanilla simple syrup. Perfect for hot or iced drinks!
Prep Time 5 minutes
Cooling Time 30 minutes
Cook Time 15 minutes
Total Time 50 minutes
Servings 8 oz

Ingredients
  

  • 1 cup water
  • 1 tablespoon pure vanilla extract
  • teaspoons liquid monk fruit sweetener
  • ¼ teaspoon xanthan gum

Instructions

  • In a small pot, blend together all the ingredients with an immersion blender (or vigorously whisk by hand).
  • Bring the mixture to a simmer over medium heat. Reduce the heat to medium-low and simmer for 10 minutes, until slightly thickened.
  • Remove from the heat and allow to cool for 30 minutes. Strain the syrup through a fine-mesh sieve and transfer to a glass jar.

Notes

Storage: Store it in a sealed jar or bottle in the refrigerator for up to 3 weeks.
Serving: Use ½ tablespoon of syrup for every 1 cup of coffee, tea, or milk. Add more for extra sweetness, especially in iced drinks where the flavour intensity softens.
Nutritional Info: Per tablespoon, 2.5 Calories, 0g Protein, 0g Fat, 0.1g Net Carbs.