Decorate with the Chocolate sauce design if you wish. Put a mixture of 2 tablespoons pure maple syrup and 2 tablespoons unsweetened cocoa powder into a squeeze bottle or an improvised pastry bag, which can be made out of a sturdy plastic storage bag and pricking a small hole in the corner through which it can flow. Squeeze a series of straight lines across the cake, then rake the tines of a fork across the top in the opposite direction to create a pattern.