I am looking for a frosting/icing made to pour on the cake and harden like fudge when it cools. My husband's grandmother made it with hersheys cocoa powder but that is all I remember. Her cake layers were less than an inch thick (there were several). She poured the chocolate over each layer and over the entire cake allowing it to drain down the sides. The cake was moist but did not absorb the chocolate. The frosting cracked when cut but did not fall apart. HELP PLEASE!!