Sugar Free Caramel Syrup & Sauce

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Making your own sugar free caramel syrup (a.k.a. sugar free caramel sauce) is easier than you might think! This rich and decadent caramel flavor is perfect for topping your favorite keto desserts or drizzling over sugar-free whipped cream on hot drinks (like bulletproof coffee). Plus, just like sugar-free chocolate syrup, this keto caramel sauce tastes just like the real deal with only a few basic ingredients.

Sugar free caramel sauce depends on a special ingredient for its thick and buttery consistency: Besti Brown Monk Fruit Allulose Blend. Unlike other sugar-free sweeteners, this one dissolves and caramelizes just like real sugar… so the caramel takes on a smooth and silky consistency, with no added calories, sugar crash, or gritty texture.

This recipe has been so popular that I included it in my Easy Keto Carboholics’ Cookbook!

Keto caramel sauce in a jar with Besti Brown.

Why You’ll Love This Homemade Keto Caramel Sauce Recipe

  • Perfect sweet and buttery flavor
  • Smooth, gooey, and thick texture like traditional caramel
  • 4 simple, natural ingredients (no corn syrup, artificial flavors, or preservatives!)
  • Made in 10 minutes
  • 0g net carbs and naturally gluten-free
  • Perfect for dipping, beverages, and desserts
Sugar free caramel sauce in jar ready to use.

Ingredients & Substitutions

This section explains how to choose the best ingredients for sugar free caramel sauce, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.

  • Butter – For the best flavor, use salted butter. However, if you are watching your salt intake, you could use unsalted butter instead.
  • Besti Brown Monk Fruit Allulose Blend – I opted to use the brown version of Besti because I love the flavor of brown sugar. If you prefer, you could make it with crystallized or powdered Besti instead — both will dissolve just like sugar does, and they caramelize beautifully. If you want to use a different keto sugar substitute, keep in mind that most other brands (including erythritol, and most brands of monk fruit or stevia, which typically contain erythritol) will not dissolve well and crystallize upon cooling, leading to a gritty texture and you won’t get the same gooey mouthfeel. If you still want to try it, see my sweeteners conversion chart for exact substitute amounts.
  • Heavy Cream – A necessary ingredient for caramel. Do not substitute any type of milk (including dairy milk, almond milk, and coconut milk), as these will not thicken properly. It would probably work to substitute coconut cream if you need to.
  • Vanilla Extract – Use higher quality vanilla for best flavor.
Sugar free caramel syrup ingredients including Besti, butter, vanilla, and heavy cream.

How To Make Sugar Free Caramel Syrup

This section shows how to make the best sugar free caramel recipe, with step-by-step photos and details about the technique, to help you visualize it. For full instructions, including amounts and temperatures, see the recipe card below.

  1. Melt. Heat butter and Besti Brown together in a large saucepan over low heat. Cook until golden brown.
TIP: Watch the sauce carefully.

TIP: Watch the sauce carefully.

Stir occasionally and watch carefully to avoid burning on the bottom of the pan.

Melted butter and Besti Brown in saucepan.
Butter and Besti Brown cooked to a golden brown.

  1. Thicken. Stir in cream and simmer until darkened in color and sauce coats the back of a spoon.
  2. Flavor. Turn off the heat and use a whisk in vanilla extract.
Sugar free caramel syrup coating the back of spoon.
Keto caramel sauce removed from the heat, and vanilla extract added in.

  1. Finish. Transfer homemade keto caramel sauce into a jar.
Low carb sugar free caramel sauce pouring into a jar.
Tips For The Best Sugar Free Caramel Sauce

Tips For The Best Sugar Free Caramel Sauce

Making a sugar free caramel sauce may seem like a daunting task, but with a little patience and the right ingredients, it’s actually quite easy! Here are a few tips and tricks:

  • Use a large pan. The larger the surface area of your pan, the faster your sauce will caramelize and thicken. I used a large saucepan, but you could even use a skillet with tall sides to make the process faster.
  • Use the right sweetener. I typically recommend Besti in all my recipes, but it’s more crucial for some than others. This sugar free caramel syrup recipe is one where it makes a huge difference. You won’t get the same smooth, gooey texture using another sweetener.
  • Be careful not to overheat. If the heat is too high, your sauce will “split”, meaning you’ll have oil separated from the other ingredients. If this happens, sometimes you can bring it back together in a blender.
  • Add vanilla last. Adding the vanilla extract last, after removing from heat, ensures that it maintains its potency. If you add it while cooking, some of it will evaporate, reducing its flavor.
Sugar-free caramel syrup close up.

Storage Instructions

  • Store: Keep low carb caramel sauce in the refrigerator. I’ve made a double batch before and had it last for weeks that way without a problem.
  • Reheat: Caramel will solidify in the fridge, so you’ll want to reheat it before serving. The best way to do this is on the stove over low heat, stirring frequently. It’s important that the temperature rises gradually when you reheat the sugar-free caramel sauce. Otherwise, you run the risk of “shocking” it, leading to separation of the oils.
  • Freeze: Add sauce to a freezer-safe container and pop it in the freezer. When you’re ready to use it, let it thaw in the fridge or at room temperature. After thawing, reheat gently to get the right consistency.
Sugar free caramel sauce on a spoon.

What To Serve With Sugar Free Caramel Syrup

This low carb caramel sauce is a delicious and versatile topping that can be used on a variety of desserts or added as a sweetener. Here are some ideas!

More Sugar Free Toppings

Level up your healthy desserts with these sugar free toppings:

The Wholesome Yum Easy Keto Carboholics' Cookbook

This reader favorite recipe is included in The Wholesome Yum Easy Keto Carboholics’ Cookbook! Inside this beautiful hard cover keto recipe book, you’ll find 100 delectable, EASY keto recipes to replace all your favorite carbs: bread, pasta, rice, potatoes, desserts, and more… each with 10 ingredients or less! Plus, a photo, macros, & tips for every recipe.



Tap underlined ingredients to see where to get them. Please turn Safari reader mode OFF to view ingredients.


Tap on the times in the instructions below to start a kitchen timer while you cook.

  1. Melt the butter and Besti Brown together in a large saucepan over low heat. Once melted, cook for about 3 to 4 more minutes, stirring occasionally, until color turns more golden brown. (Watch it carefully to avoid burning.)

  2. Stir in the cream. Bring to a gentle boil, then reduce heat and simmer for 7 to 10 minutes, continuing to stir occasionally, until the mixture is a dark caramel color and coats the back of a spoon.

  3. Remove sugar-free caramel syrup from heat. Whisk in the vanilla extract.

  4. The sauce will thicken more as it cools from hot to warm.

Nutrition Facts

Amount per serving. Serving size in recipe notes above.

Calories 91

Fat 10g

Protein 1g

Total Carbs 1g

Net Carbs 0g

Fiber 1g

Sugar 1g

Nutrition facts are provided as a courtesy. Have questions about calculations or why you got a different result? Please see our nutrition policy.

© Copyright Maya Krampf for Wholesome Yum. Please DO NOT SCREENSHOT OR COPY/PASTE recipes to social media or websites. We’d LOVE for you to share a link with photo instead. 🙂

Sugar-free caramel syrup recipe pin.

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