Sugar-Free Peppermint Syrup

Peppermint is one of those flavors that instantly makes a drink feel like the holidays. This Sugar-Free Peppermint Syrup is an easy way to add that cool peppermint flavor to coffee, lattes, hot chocolate, and even desserts without adding traditional sugar.

It only takes a few simple ingredients and comes together quickly on the stovetop. I use allulose for sweetness and peppermint extract for the flavor, which also makes it easy to adjust the peppermint to exactly how strong you like it.

I especially love having a bottle of this in the refrigerator during the Christmas season. It makes it easy to turn an ordinary cup of coffee into a homemade holiday coffee-shop drink.

An Easy Sugar-Free Peppermint Syrup to Make at Home

This sugar-free peppermint syrup is a simple way to add cool mint flavor to drinks and desserts. Allulose provides the sweetness, while peppermint extract makes it easy to adjust the flavor without adding extra liquid.

The syrup comes together in a small saucepan, and the peppermint is added after heating.

One important tip: start with less peppermint extract than you think you need.

Peppermint extract is very concentrated, and a little goes a long way. You can always add a few more drops, but it is much harder to fix a syrup that tastes too strongly of peppermint.

How to Use Sugar-Free Peppermint Syrup

This is one of those little recipes that can be used in so many ways.

Try it in:

Hot coffee
Iced coffee
Peppermint mochas
Hot or iced lattes
Cold brew
Hot chocolate
Protein coffee
Protein shakes or smoothies
Homemade whipped cream or cold foam
Chocolate desserts

Start with a small amount, stir well, and taste before adding more. How much you need will depend on the drink and how prominent you want the peppermint flavor to be.

If you love peppermint mocha drinks during the holidays, this syrup is a great one to keep on hand alongside homemade sugar-free chocolate syrup.

How to Control the Peppermint Flavor

Peppermint extract can go from pleasantly minty to overpowering pretty quickly.

Add the peppermint after removing the syrup from the heat and allow it to cool slightly before deciding whether it needs more.

Start with the lower amount listed in the recipe card. If you want a stronger peppermint flavor, add only a few drops at a time, stir well, and taste again.

This also lets you customize it for your family. Some people love a strong peppermint flavor, while others prefer just a hint.

How to Make Sugar-Free Peppermint Syrup Slightly Thicker

The xanthan gum in this recipe is optional.

You can leave it out completely for a thinner coffee syrup, or use a very small amount if you prefer a little more body.

The key word here is small. 😂

Too much xanthan gum can make a syrup feel slimy rather than smooth.

If you use it, whisk it into the warm syrup very well so it disperses evenly. The syrup may also thicken slightly as it cools.

Tips for the Best Peppermint Syrup

Dissolve the Sweetener Completely

Stir the water and allulose together as they heat, making sure the sweetener fully dissolves before the syrup simmers.

This creates a smooth, even base for the peppermint flavor.

Keep the Simmer Gentle

There is no need to boil this syrup aggressively or cook it for a long time.

A gentle simmer is enough. Follow the cooking time in the recipe card rather than continuing to cook it in an attempt to make it very thick.

Add the Peppermint After Heating

Remove the saucepan from the heat before stirring in the peppermint extract.

This gives you better control over the finished flavor and makes it easier to adjust the peppermint a little at a time.

Cool Before Transferring

Allow the syrup to cool before transferring it to a jar or bottle.

Once cooled, cover it and store it in the refrigerator so it is ready whenever you want to make a holiday coffee or treat.

Homemade Peppermint Mocha at Home

One of my favorite ways to use this syrup is in a homemade peppermint mocha.

Combine coffee or espresso with your favorite milk, a little sugar-free chocolate syrup, and this peppermint syrup. You can finish it with whipped cream, homemade cold foam, or even a drizzle of chocolate syrup.

It is an easy way to get that coffee-shop holiday flavor at home while controlling the ingredients and sweetness yourself.

Frequently Asked Questions

Does sugar-free peppermint syrup need to be refrigerated?

Yes. Store the finished syrup in a covered jar or bottle in the refrigerator.

Is xanthan gum required?

No. Xanthan gum is completely optional. Leave it out if you prefer a thinner coffee syrup, or use the small amount listed in the recipe card for a slightly fuller consistency.

Why should I add peppermint extract gradually?

Peppermint extract is highly concentrated. Adding it gradually helps you reach the flavor you want without accidentally making the syrup overwhelmingly minty.

Can I use this peppermint syrup in cold drinks?

Absolutely. It works in both hot and cold drinks, including iced coffee, cold brew, iced lattes, and protein shakes.

Can I use this in a peppermint mocha?

Yes. This is one of my favorite ways to use it. Combine the peppermint syrup with coffee or espresso, milk, and sugar-free chocolate syrup for an easy homemade peppermint mocha. Want a white chocolate peppermint mocha, here’s my white chocolate sauce. Want to make an iced peppermint mocha? Here’s my iced mocha recipe, just add some of the sugar-free peppermint syrup to it.

Can I use this syrup in desserts?

Yes. Try adding a little to chocolate desserts, whipped cream, frosting, glazes, or other recipes where you want a peppermint flavor.

A Simple Holiday Coffee Syrup to Keep on Hand

I love recipes like this because one little jar can turn several everyday drinks into something that feels special for Christmas.

You can keep the peppermint subtle or make it stronger, use the syrup in hot or iced drinks, and pair it with chocolate for that classic peppermint mocha combination.

And because it is homemade, you get to control exactly how sweet and minty it is.

Keep a bottle in the refrigerator during the holiday season and you are only a few minutes away from your own sugar-free coffee-shop drink at home.

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