Step 1

Cut butter into pieces, 1 tablespoon size. Using the paddle attachment, whip butter for 5-7 minutes, scraping down the bowl occasionally. Beat until butter looks light in color and has more volume.

Step 2

Sift the cocoa powder into mixing bowl. Turn the mixer on slow speed and beat until cocoa power is incorporated.

Step 3

Add 2 cups powdered sugar and the vanilla extract and mix on low speed until incorporated. Beat for an additional 2 minutes.

Step 4

Continue adding the  additional powdered sugar, 2 cup at a time and alternating with the heavy whipping cream and beat on low speed until sugar is incorporated. Increase speed to medium-high and beat for 2 minutes before adding more powdered sugar.

Step 5

After all the powdered sugar has been added, increase speed to medium-high and beat for another 2 minutes to whip additional air into the frosting.