Mix ingredients together and pour over the mix in the baking pan. The cake mix will start to float to the surface. Bake in a 350-degree F oven for 35 minutes. The cake is done when the top is uniformly dry, although the frosting mixture may bubble around the edges. Do not overbake! Allow to cool before serving. To serve, cut cake into pieces and slip a spatula under each. Carefully remove them from pan and flip the pieces upside down onto plates. The frosting will now be on top. Garnish with chopped nuts, confectioners' sugar, fresh mint, and orange slices.