Cake Batter Fudge Ingredients 1 cup yellow cake mix 1 cup confectioners sugar 1/2 stick (1/4 cup) butter, cut into small squares 1/4 cup milk sprinkles Instructions Mix cake mix and icing sugar in microwave-safe bowl. Add butter and milk. Dont stir. Microwave for 2 minutes. Stir immediately until completely combined. Add sprinkles. Do not overmix as sprinkle colour may bleed. Spread into greased pan. Refrigerate for at least one hour.