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.
This recipe has been updated since it was originally published. It now uses a simpler method that takes a fraction of the time and produces a better tasting syrup.
Simple 5-minute sugar-free vanilla coffee 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.
Here’s a few reasons why I love this 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.
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 or stevia drops to taste.
- 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.
Try these flavour variations
- Classic: Skip the vanilla for a classic, sweet simple syrup.
- Cinnamon Dolce: Add a little pure cinnamon extract for a cozy sweet cinnamon syrup.
- Peppermint: Use 1-2 teaspoons 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 for a rich, café-style syrup that adds depth to homemade frappes and iced coffees.
Watch me make sugar-free vanilla syrup
Serving & Storing 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.
Copycat Starbucks Sugar-Free Vanilla Syrup
Ingredients
- 1 cup water
- 1 tablespoon pure vanilla extract
- 1-1½ teaspoons liquid monk fruit sweetener
- ¼ teaspoon xanthan gum
Instructions
- Add all the ingredients to a blender bottle.
- Blend for 5-10 seconds, until smooth.
- Transfer the syrup to a glass jar and store in the fridge until ready to use.
- Add 1-2 tablespoons to sweeten your favourite drinks with zero sugar.
