CAKE: Preheat oven to 350~. Grease and flour 10x15" pan. Melt butter; add cocoa; stir and set aside. In large bowl mix flour, sugar, baking soda, peppermint schnapps and butter mixture; beat well. Add eggs and sweetened condensed milk; beat 2 minutes. Pour into prepared pan. Bake 20 minutes. FROSTING: Beat all ingredients together well; spread over cake. ----