Preheat oven to 375~. In a large bowl, combine together butter and sugar until light and fluffy; add malted milk powder and cocoa and beat just until mixed. Add eggs, beating well. Sift together dry ingredients, and add to chocolate mixture alternately with half and half. Spread evenly in a well greased 9x13" pan, and bake 35-40 minutes or until done. Let cool in pan completely. Chocolate Malted Frosting: In a medium bowl, combine the half and half and malted milk powder. Stir to combine, and let stand 15 minutes to dissolve the powder. In a medium bowl, beat together the butter and cocoa. Add malted milk mixture and beat well. Add powdered sugar and beat on high. Frost cake ----