A cocoa sponge cake topped with a chocolate mousse ... Remove the cake from the oven, flip it, and place it back in the pan. Chocolate and coffee syrup: Heat the milk, sugar, instant coffee ...

Place coffee ... the chocolate and stir until the chocolate has melted. Cool then cover and chill. Place all the dry ingredients in a bowl and rub the butter into fine crumbs. Warm the syrup ...

Put sponge square on a plate, then brush generously with one third of coffee syrup. Spread half of butter cream evenly ... Again we have to put the sponge as first one, at last we will spread ...