Low Carb Royal Icing Buttercream for Cookie Decorating (Sugar Free) (Edit recipe)

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Looking for the perfect low-carb, sugar-free frosting to decorate cookies or cakes? This keto royal icing buttercream is a dream come true! Smooth, creamy, and packed with flavor, it’s the ideal topping for your favorite keto sugar cookies, gingerbread cookies, or keto cakes. Unlike traditional royal icing made with powdered sugar, this keto-friendly recipe uses basic ingredients like almond flour, xanthan gum, and a sugar alternative. It’s diabetic-friendly, low-carb, and guilt-free—just what you need for a keto diet!

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Original Recipe

PREP TIME

10 minutes

COOK TIME

—

INGREDIENTS

5

Serves: 24

Ingredients

3 Tbsp Confectioners Sugar, Powdered - Swerve
2 Egg Whites
.5 cup Butter, Unsalted
2 Tbsp Heavy Whipping Cream
.25 tsp Vanilla Extract, sugar free

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Process

Cook Mode

Note, these instructions are written assuming the standard serving size, since you have modified the number of servings, these steps may need to be modified for best results

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

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. 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. Calories: 39.6 kcal Carbohydrates: 0.1 g Net Carbs: 0.1 g Protein: 0.3 g Fat: 4.3 g

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About This Recipe

Show nutritional information

This is our estimate based on online research.
Calories:	41
Fat:	4 g
Carbohydrates:	0 g
Protein:	2 g
Cholesterol:	12 g
Sodium:	1 mg
Fiber:	0 g
Sugars:	0 g
Sugar Alcohol:	0 g
Calculated per serving.