Step 1

Cut the butter into pieces. Using the paddle attachment, whip the butter for 3-5 minutes, scraping down the bowl occasionally. Beat until the butter looks light in color and has increased in volume.

Step 2

Add 2 cups of powdered sugar at a time and mix on low speed until incorporated into butter then continuing adding additional powdered sugar, alternating with the vanilla extract and heavy cream.  After each additional of 2 cups of powdered sugar, beat for about 60 seconds on medium-high or until the powdered sugar is well combined.

Step 3

Increase speed to medium-high and beat for another 3-5 minutes to whip additional air into the frosting.