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+ servings
A slice of cake with layers of purple filling and yellow keto royal icing buttercream frosting, next to a piping bag on a white plate.
Prep Time: 10 minutes
Total Time: 10 minutes
Servings: 24 servings
Net Carbs: 0.1g
Author: Rally Rus
This Low Carb Keto Royal Icing Buttercream is perfect for decorating cookies, cakes, or gingerbread houses. Sugar-free, easy to make, and diabetic-friendly, it’s a glossy, creamy frosting that holds its shape beautifully. Customize with gel colors for intricate designs or use it as a smooth base for keto desserts. Ideal for your low-carb and gluten-free baking needs.

Ingredients

Instructions

  • Prep the Base: In a small bowl, whisk the egg whites and powdered sugar substitute. Add a little lemon juice to stabilize the meringue for the best results.
  • Cream the Butter: In a large mixing bowl, use a hand mixer or the paddle attachment of a stand mixer to beat the butter until creamy.
  • Combine Ingredients: Slowly add the egg white mixture to the butter, alternating with the heavy cream. Mix on medium-low speed until smooth and glossy.
  • Customize: Stir in the vanilla extract for a classic flavor. Add gel food colors for different designs but avoid adding too much liquid to maintain a fairly thick frosting.
  • Decorate: Transfer to a piping bag and decorate your keto sugar cookies, gingerbread houses, or cakes. For cutout cookies, this frosting holds its shape perfectly!

Notes

Storage Tips
  • Store in an airtight container in the fridge for up to 7 days.
  • Freeze extra frosting in a plastic bag for up to 3 months. Thaw before using.
Top Tips for Success
  • Use fresh egg whites or liquid egg whites for the right consistency.
  • If the frosting becomes too runny, mix in a little almond flour or xanthan gum.
  • Clean your stand mixer and bowls thoroughly to ensure a smooth icing texture.

Nutrition Per 1 Serving

Calories: 39.6kcal | Carbohydrates: 0.1g | Net Carbs: 0.1g | Protein: 0.3g | Fat: 4.3g | Saturated Fat: 2.7g | Sugar: 0.1g

Recipe Link:

https://coachrallyrus.com/keto-recipes/keto-royal-icing-buttercream-recipe/

By Rally Rus | Easy Keto Recipes & High Protein Low Carb Meals

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