Jamocha Rum 'N Butter Cake 1 (18.25 ounce) box Devils food cake mix; with pudding 2 tablespoons Instant coffee powder, divided 1/2 cup Water 1/2 cup Sugar 2 tablespoons Butter 1/2 cup Rum 1 package Chocolate fudge frosting mix 2 cups Whipping cream 1 (7 ounce) milk chocolate candy bar In bowl, combine cake mix and 1 tablespoon coffee powder. Pour into 9x13 inch baking pan. Bake as directed on package. In saucepan, combine water, sugar, butter and rum. Heat until sugar is dissolved and butter is melted. Spoon over hot cake until all liquid is absorbed. Cool completely. In another bowl, combine frosting mix, 1 tablespoon coffee powder and whipping cream. Chill for 15 minutes. Beat until thickened. Top cake with mixture. Garnish with shaved candy.