For a real Valentino, bake it in a heart shaped pan or cut it out into a heart shape. You may use any shape pan that gives you an area of 50� - 6x8 or 7x7. An 8� spring form pan works with great results as do smaller pans or ramekins. An instant read thermometer highly recommended. Also, this cake will (obviously) taste exactly like the chocolate you use, so use a good quality chocolate.