This keto buttercream frosting is silky, rich, and perfect for topping your favorite baked treats. Whether you’re decorating cupcakes, layering cakes, or even frosting cookies, this frosting brings a creamy texture without any refined sugar or dairy. It’s ideal for anyone following keto, paleo, gluten-free, or dairy-free diets.
I’ve tested this recipe multiple times, and it’s quickly become a go-to for every sweet treat in my kitchen. From birthday cakes to simple weekday cupcakes, it consistently delivers a luscious, creamy finish that tastes just like traditional buttercream.
Why This Dairy-Free Buttercream Stands Out
This frosting is simple to make, versatile, and completely indulgent. Here’s why it’s a must-try:
- Quick and easy – Mix the ingredients in a stand mixer or with a hand mixer, and you’re done in minutes.
- Customizable texture – Adjust the amount of coconut oil for a thicker or softer frosting depending on your use.
- Long-lasting – Store in the freezer in an airtight container for up to three months and thaw when needed.
- Delicious taste – It’s smooth, sweet, and creamy, with none of the aftertaste of artificial sweeteners.
- Diet-friendly – Perfectly keto, paleo, gluten-free, dairy-free, and vegan.
The frosting achieves a texture that’s remarkably close to classic buttercream, so your family and friends won’t even guess it’s healthier.
Ingredients You’ll Need
The ingredient list is simple and easy to find. While substitutions are limited to maintain the perfect texture and flavor, you can swap powdered erythritol for regular powdered sugar if needed (¾ cup works).
Here’s what you’ll need:
- Palm shortening or vegetable shortening, softened to room temperature
- Powdered erythritol or powdered sugar
- Pure vanilla extract
- Arrowroot flour
- Coconut flour
- Coconut oil, melted
These ingredients come together effortlessly and create a frosting that’s both light and fluffy while still holding up well for piping or spreading.
Tips for Best Results
- Sweetener texture – Make sure your sweetener is finely powdered. If using granular erythritol, blend it in a food processor or spice grinder for a few seconds.
- Arrowroot flour – Stick to arrowroot for the best consistency. Tapioca flour can be used as a close substitute if necessary.
- Coconut oil – Melt it completely but do not overheat. Slowly drizzle into the frosting to avoid separation.
- Consistency – Adjust with more or less coconut oil depending on how soft or stiff you want your frosting.
How to Make Keto Buttercream Frosting
- Mix shortening and sweetener: In a stand mixer with a paddle attachment, combine the softened shortening with powdered erythritol or sugar. Beat on medium-high until smooth.
- Add remaining ingredients: Mix in vanilla, arrowroot flour, and coconut flour for about 1 minute until evenly incorporated.
- Incorporate coconut oil: Gradually drizzle in the melted coconut oil while mixing on high. Start with 3 tablespoons and adjust if needed for your preferred consistency.
- Final stir: Turn off the mixer and give the frosting a gentle stir to ensure everything is fully combined and smooth.
The result is a frosting that is creamy, rich, and pipeable, ready for decorating any dessert.
Delicious Ways to Use This Frosting
This versatile keto buttercream frosting can elevate nearly any dessert:
- Frost cakes and cupcakes for a classic treat
- Spread between cookies to make decadent sandwich cookies
- Top keto chocolate or vanilla cakes
- Pair with fresh fruit like strawberries or raspberries
- Enjoy it straight from the spoon for a quick indulgence
Its creamy texture and balanced sweetness make it an ideal match for almost every dessert without overpowering flavors.
Low-Carb Sweetener Notes
When choosing your sweetener, ensure it’s finely powdered for a smooth texture. Popular keto-friendly options include:
- Erythritol (powdered)
- Swerve
- Lakanto
- Xylitol (use caution if you have pets, as it’s toxic to dogs)
Using a powdered form ensures the frosting remains smooth and spreadable without gritty sugar crystals.
Print
Creamy Keto Buttercream Frosting: Dairy-Free, Decadent, and Easy
- Total Time: 10 min
Ingredients
1 ½ cups palm shortening or vegetable shortening, softened to room temperature
¾ cup powdered erythritol or powdered sugar
2 teaspoons pure vanilla extract
5 tablespoons arrowroot flour
4 tablespoons coconut flour
3 tablespoons coconut oil, melted (adjust for consistency)
Instructions
- Combine shortening and sweetener: In a stand mixer with a paddle attachment, beat the softened shortening with powdered erythritol or sugar on medium-high speed until smooth and creamy.
- Add remaining ingredients: Mix in vanilla extract, arrowroot flour, and coconut flour for about 1 minute until evenly incorporated.
- Drizzle in coconut oil: Slowly add melted coconut oil while mixing on high. Start with 3 tablespoons and add more if needed to achieve your preferred consistency.
- Final stir: Turn off the mixer and gently stir the frosting to ensure everything is smooth and fully combined.
Notes
- If using granular erythritol, process it in a spice grinder or blender until powdered to avoid gritty frosting.
- Arrowroot flour is preferred for texture, but tapioca flour can be a substitute if necessary.
- Coconut oil should be melted completely but not too hot; add slowly to prevent separation.
- Adjust coconut oil quantity to make frosting thicker or softer depending on your use.
- Store frosting in an airtight container in the freezer for up to 3 months. Thaw at room temperature before using.
- Prep Time: 10 min
