In a large bowl add the softened butter. Beat with an electric mixer on high for 5 minutes till fluffy and white in color.
Add the powdered sweetener, along with the cocoa powder and beat it on the lowest setting for a minute or until the sweetener is completely mixed in with the whipped butter.
Increase the speed to high and beat for 2 to 3 minutes or till light and fluffy, scraping the sides of the bowl as needed.
Add the vanilla extract and heavy cream and beat again for 2 minutes.
Use immediately to frost your favorite Keto cakes or refrigerate for later.
This frosting can also be frozen for up to 6 months. To use, thaw in the refrigerator overnight, and beat with an electric mixer for couple of minute, till light and fluffy.
The calories shown are based on the recipe making about 3 cups, with 1 serving being 1/3 cup frosting. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**