Marble Cake

Description
A truly elegant affair Try it with cream or chocolate sauce.

Ingredients

 * 8oz/225g. Sponge mix
 * 2 eggs
 * 2 tbs/30ml Cocoa Powder
 * Juice and zest of one Orange
 * 6oz/175g. Bitter chocolate
 * 2oz/50g.butter 3-4 tbsp thick cream

Directions

 * 1) Divide sponge mix between 2 bowls to one Add 1 egg, cocoa and 2-3tbsp. water.
 * 2) Beat until smooth and creamy. Add second egg to other bowl with the orange zest and 2-3 tbsp. juice.
 * 3) Beat to same consistency. Spoon the mixtures into the microwave dish alternately, swirling the colors.
 * 4) Flatten the top and bake on High for 4-5 minutes, turning several times for ovens without turn tables.
 * 5) Leave to stand 5-7 minutes. Melt the chocolate and butter together on Medium for 3.4 minutes, until just melted.
 * 6) Cool slightly and stir in the cream. Turn cake out and place on a rack over a tray.
 * 7) Coat cake generously with warm sauce, leave 3-4 hours to set and serve sliced.
 * 8) Keep any remaining cake well wrapped.