The Best Keto Chocolate Buttercream Frosting

Name: The Best Keto Chocolate Buttercream Frosting
Prep time: 5 min
Yield: 12
Cuisine: American
Ingredients: 1 cup butter, softened; 1 1/2 cups confectioners Swerve or use sweetener of choice; 1/4 cup 100% unsweetened cocoa powder; 1/4 cup sugar-free chocolate chips, melted; 3 tablespoons heavy whipping cream; 1/4 teaspoon salt; 2 teaspoons vanilla extract

By Annie Lampella, Pharm.D.

Published November 1, 2020 • Updated June 2, 2025

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Reader Rating

5 Stars (6 Reviews) 3 Comments

Easy Kid Friendly

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This is the ultimate keto 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.

piping a swirl of keto chocolate frosting on a white cupcake

close up view of creamy sugar free chocolate buttercream

three vanilla cupcakes with keto butter cream frosting on a cake stand

newly decorated cupcake with chocolate frosting

5 Mins

Nutrition Facts

Servings

167

Calories

17.8g

Fat

Protein

0.7g

Net Carb

2.6g

Total Carbs

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.

The Best Keto Chocolate Buttercream Frosting Ingredients

1 cup butter, softened
1 1/2 cups confectioners Swerve or use sweetener of choice
1/4 cup 100% unsweetened cocoa powder
1/4 cup sugar-free chocolate chips, melted
3 tablespoons heavy whipping cream
1/4 teaspoon salt
2 teaspoons vanilla extract

The Best Keto Chocolate Buttercream Frosting Directions

STEP

1

Cream the butter

In a medium sized bowl, beat butter until light and fluffy using an electric mixer (about 2-3 minutes).
STEP

2

Make it chocolate

Add in remaining ingredients and continue to whip until creamy and smooth.

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A sugar-free 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 keto chocolate buttercream frosting. So delicious, it might have you eating it by the spoonful.

piping chocolate buttercream onto a keto cupcake

Keto Chocolate

This glorious frosting is made with sugar-free chocolate options. First we add cocoa powder. Make sure you get 100% unsweetened cocoa powder. Other cocoa powders may be sweetened with sugar, so you want to avoid those. Next we melt down some sugar-free chocolate and whip that into the keto frosting. The chocolate I like to use is by ChocZero. Their chocolate is sugar alcohol free too and it’s the best tasting keto chocolate out there. You could also use 100% unsweetened chocolate here too like a Baker’s chocolate if you can’t get your hands on keto chocolate.

three cupcakes with chocolate buttercream frosting decorated with sugar free sprinkles and a piping bag near

Can I Freeze Keto Frosting?

Yes! You can freeze keto buttercream frosting. Put it in a container or freezer safe bag and freeze for up to 2 to 3 months. Thaw in the fridge before using, then allow it to come to room temperature before using.

Can I Make Frosting Ahead of Time?

This keto chocolate buttercream frosting can be made ahead of time. After you make up your frosting, store it in an airtight container and refrigerate. Just before using it, bring it to room temperature. Then stir to get it fluffy again!

keto chocolate frosting on birthday cupcakes

Tips for Making the Best Keto Frosting

Butter needs to be at room temperature to ensure a creamy frosting
Heavy whipping cream is ideal for making creamy frosting. You can substitute with a nut milk but it won’t be as creamy
Sift the cocoa powder to avoid any lumps in the frosting
Beat the butter for several minutes to achieve the fluffiest, creamiest keto frosting

The Best Keto Chocolate Buttercream Frosting: FAQS

Can I use a different sweetener instead of Swerve?

Absolutely! You can substitute Swerve with any sugar-free sweetener of your choice. Just be sure to adjust the amount according to the sweetness level of the alternative sweetener you choose.

How can I store leftover frosting?

You can store leftover frosting in an airtight container in the refrigerator for up to a week. Just give it a good stir before using it again to restore its creamy texture.

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. Keep in mind that this may slightly change the flavor and texture.

Can I make this frosting ahead of time?

Yes, you can make the frosting ahead of time! Just store it in the refrigerator in an airtight container. It can be made up to a week in advance.

What can I use this frosting on besides cakes?

This delicious keto chocolate buttercream frosting is perfect for cupcakes, cookies, or as a dip for strawberries and other fruits! Get creative!

Nutritional information & Macros

Amount Per Serving
Calories	167
Fat	17.8g
Protein	0g
Total Carbs	2.6g
Net Carbs	0.7g

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About Annie Lampella, Pharm.D.

Annie Lampella is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis and a Pharm.D., she has over 11 years of experience developing family-friendly keto recipes based on the science of human metabolism. She is the author of the Protein Packed cookbook, published by Victory Belt Publishing.

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