Best Butter Frosting Recipe. Slowly stream in 14 cup of the heavy cream and vanilla. Add sifted confectioners sugar and stir on low until incorporated.
In a mixing bowl beat butter until fluffy. Cream together on low speed until they are completely combined. In a separate bowl mix the Cocoa Powder and the Powdered Sugar until combined.
Place butter in the bowl of a stand mixer with paddle attachment.
Mix on low speed until smooth and fluffy about a minute. Beat butter and shortening together on medium speed for a few minutes. In a mixing bowl beat butter until fluffy. Always use salted butter.