The Best Keto Chocolate Buttercream Frosting
Published November 1, 2020 • Updated February 2, 2026
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This is the ultimate low carb chocolate buttercream frosting made with creamy butter and two kinds of chocolate. This is one sugar-free frosting that will have you licking the bowl.
Ingredients
1 cup butter, softened -
1 1/2 cups confectioners Swerve or use sweetener of choice
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1/4 cup 100% unsweetened cocoa powder
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1/4 cup sugar-free chocolate chips, melted
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3 tablespoons heavy whipping cream
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1/4 teaspoon salt
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2 teaspoons vanilla extract
Nutrition disclaimer
The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.
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Can I use a different sweetener instead of Swerve?
Yes! You can substitute Swerve with any sugar-free sweetener. Just adjust the amount based on how sweet your alternative sweetener is.
How can I store leftover frosting?
Store leftover frosting in an airtight container in the fridge for up to a week. Just give it a good stir before using it again to get it creamy again.
Is there a dairy-free option for this frosting?
Yes, you can use a dairy-free butter substitute like coconut oil or a vegan butter alternative. This will change the flavor and texture a bit.
Can I make this frosting ahead of time?
Yes, you can make the frosting ahead of time! Just store it in the fridge in an airtight container. It'll keep for up to a week.
What can I use this frosting on besides cakes?
This chocolate buttercream is perfect for cupcakes, cookies, or as a dip for strawberries and other low carb fruits!
A keto chocolate buttercream frosting is what dreams are made of. This frosting recipe is creamy, fluffy, rich and it has the ultimate chocolate flavor. To achieve this chocolaty decadence, you will need two types of chocolate – 100% unsweetened cocoa powder and melted sugar-free chocolate. This combination creates the best chocolate buttercream frosting. So delicious, it’ll have you eating it by the spoonful.
This was really easy and tastes great. I actually forgot to add the sweetener to begin with and still thought it tasted good! I added some and admit it is better with, but if you don’t have a particularly sweet tooth you could get away with less sweetener. Will definitely make this again, thanks for the recipe!