Indulge guilt-free with this Low Carb Classic Buttercream Frosting—a creamy, silky-smooth topping that’s perfect for keto desserts, sugar-free cakes, or low-carb cupcakes. Made with just five simple ingredients, including rich unsalted butter, powdered erythritol for a keto-friendly sweetness, and a hint of vanilla extract, this frosting delivers all the decadence without the carbs. Whipped to fluffy perfection in just 10 minutes, it’s easy to customize the texture and sweetness to suit your taste. Whether you're frosting a batch of sugar-free cookies or adding a luscious finishing touch to your favorite low-carb treats, this versatile buttercream is sure to become a go-to recipe in your low-carb baking repertoire.
In a large mixing bowl, add the softened unsalted butter.
Using an electric mixer on medium speed, beat the butter until it is light and fluffy, about 2-3 minutes.
Gradually add the powdered erythritol to the butter, about 1/2 cup at a time, and continue to mix until fully incorporated. Scrape down the sides of the bowl as needed.
Add the vanilla extract and heavy cream to the mixture. Mix on low speed until they are well combined.
Finish by adding the salt and increasing the mixer speed to medium-high. Beat the frosting for an additional 2-3 minutes until it is smooth and creamy.
Taste the frosting and, if desired, adjust the sweetness by adding more sweetener, or the texture by adding more heavy cream, 1 teaspoon at a time.
Use the buttercream immediately to frost your baked goods, or store it in the refrigerator in an airtight container until ready to use. Allow it to come to room temperature and re-whip if necessary before using.
Calories |
1826 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 202.0 g | 259% | |
| Saturated Fat | 127.5 g | 638% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 547 mg | 182% | |
| Sodium | 339 mg | 15% | |
| Total Carbohydrate | 709.9 g | 258% | |
| Dietary Fiber | 0.0 g | 0% | |
| Total Sugars | 1.2 g | ||
| Protein | 2.0 g | 4% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 51 mg | 4% | |
| Iron | 0.2 mg | 1% | |
| Potassium | 68 mg | 1% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.