Making chocolate desserts is always fun. Making marquis chocolate sponge cake is equally as fun! If you've never tried your hand at making this delicious dessert, then get ready because it's sure to be a good time!
Preheat oven to 350°. Place oven rack on middle level of oven. Grease an 8-inch layer cake pan and dust lightly with flour.
Break the chocolate into small pieces and combine in a small saucepan with the cognac or coffee. Place over hot water and stir with a wooden spoon until melted and smooth. Remove from the heat and beat in the butter, a little at a time, until smooth.
Beat the egg yolks then add ½ cup sugar, beating with an electric mixer or wire whisk until thick and light. Fold in the flour carefully.
Beat the egg whites and salt until soft peaks form, then beat In the 1 tablespoon sugar until stiff but not dry. Fold the chocolate mixture into the flour mixture. Fold in half the egg whites then fold in the remaining egg whites carefully. Turn into the pan. Bake 30 minutes or until a cake tester comes out clean. (The top will crack in baking.) Cool in the pan 5 minutes, then run a spatula around the edge and turn out. Turn right side up and finish cooling on a cake rack. Sprinkle with powdered sugar.
Care to try another chocolate recipe? Try making Chocolate Souffle! It's delicious and fun to make.