About 2 1/4 cups.
Chop Candy Melts (you can use a food processor). Heat whipping cream in saucepan just to boiling point. DO NOT BOIL. Remove from heat, add chopped Candy Melts, stir until smooth and glossy. If mixture is too thick, add 1 to 2 tablespoons additional warm whipping cream.
Step 2Place cake on cake board cut to fit; position on wire rack over drip pan. Pour glaze into center and work out toward edges. Note: Cake may be iced first in buttercream icing. Let icing set, then pour on ganache. If cake is one layer or perfectly smooth, buttercream icing is not needed.
Whipped Ganache: follow recipe above, using 3/4 cup whipping cream and making these changes: Allow mixture to set and cool to room temperature (it will have the consistency of pudding, this may take 1 to 2 hours.) Whip on high speed until light and soft peaks form.