Prepare Batter: Place cream cheese and 2/3 cup sugar in mixing bowl. Using electric mixer, cream mixture until smooth. Add eggs, one at a time, while mixing. Melt Candy Melts following package directions; cool 7-10 minutes. (It is important that candy be cooled, but still liquid; if candy is too hot, it will get lumpy when added to batter.) Add cooled candy, vanilla and whipping cream to cream cheese mixture; blend well. Pour batter into prepared pans.