Put the chocolate and milk in top of a boiler, bring water to a boil and cook until chocolate melts with milk. Add butter and mix well. Set aside.

Blend egg yolks with sugar beating the mixture well. Add the chocolate mixture and blend well. Combine the cake flour mixing well.

Beat egg whites with salt until soft peaks are formed.

Fold the egg whites into the chocolate mixture using the cut and fold strokes.

Pour into prepared 20 cm. pans. Bake in moderate oven a 160°C for 45 minutes. Let it cool.

Frost with M&M choco topping: Place in chocolate and butter in top of a double boiler. Bring water to a boil. Cook until choco and butter melts. Combine sugar and egg yolk beating well. Cool.

Spread the choco toppings in top of the cake. Decorate it with M&M chocolates. Use your imagination in designing the cake.