In the bowl for an electric mixer, add butter. Beat butter on medium speed with the whisk attachment for about 1 minute, until butter is smooth.
Add 1 cup of powdered sugar, and beat until combined. Repeat with 1 more cup.
Add bakery emulsion and heavy whipping cream and beat until combined.
Add the remaining powdered sugar, one cup at a time, beating until combined after each addition.
Beat for about one additional minute, until frosting is smooth, thick, and fluffy.