Separate egg yolks from egg whites. Add egg yolks and sugar into a large bowl and beat until fluffy for 5 minutes.
In a smaller bowl beat egg whites until it turns into a soft, fluffy meringue. Add into the egg yolk mix the cognac and orange juice continue beating. Add baking powder into flour and mix, slowly start to add into the batter a bit of flour and meringue until done.
Butter and flour a baking pan, and add the batter. Bake at 180 or until golden brown.
When the cake has baked set it aside to cool off.
Melt dark & chocolate in two separate sauté pans. Cover cake first with dark chocolate and then spread with Icing knife. Then dot white chocolate onto the cake and made a design you like.
I took the tip of a knife and started slowly spreading the white from one side of the cake to the other to get the design.