1 lb white chocolate, finely chopped (make sure to use real white chocolate here, that contains cocoa butter in the ingredients, and ideally one that contains over 25% cocoa butter, such as Callebaut or El Rey)
18 oz. cream cheese, at room temperature
8 oz. unsalted butter
Instructions
Melt white chocolate in a double boiler, and cool. Beat cream cheese and butter together until fluffy, add white chocolate and beat until smooth. Chill before using.
Notes
(from Dede Wilson's Wedding Cake Book)
Recipe by The Domestic Front at https://www.thedomesticfront.com/chocolate-birthday-cake/