Sugar Free No Cook Swiss Meringue Buttercream

Velvety smooth, satisfyingly sweet, and lightly moisturizing sum up the nature of this easy-to-make, sugar free, no cook Swiss meringue buttercream.

4.72 from 25 votes

Diets: Gluten Free • Keto • Low Carb • Nut Free • Sugar Free • Vegetarian

THM Fuel: THM S

Prep Time: 30

Total Time: 30

Servings: servings

6 tablespoons egg whites (about 3 large)
1 ½ cups Lakanto Powdered or equivalent powdered sweetener (how to make powdered sweetener)
2 cups unsalted butter, room temperature
1 tablespoon pure vanilla extract
1 teaspoon lemon juice, optional (reduces sweetness a bit)
2 tablespoons unsweetened cocoa powder, optional (for chocolate buttercream)

Add the egg whites and sweetener to the bowl of a stand mixer. Using the paddle attachment, beat on medium speed for about 10 minutes, scraping the sides as necessary.
Turn the speed down to low. Gradually add the butter a chunk at a time until each chunk is fully incorporated.
Add the vanilla and lemon juice slowly until it is mixed in. If making chocolate, add the cocoa powder slowly.
Turn the speed back up to medium and allow to beat for another 10 minutes. It might look curdled at first, but it should emulsify as it is beating.

Serving: 0.25cupCalories: 168kcalCarbs: 1gProtein: 0gFat: 18gFiber: 0g