La ricetta che ho cercato per anni e di cui tutti sono pazzi

200 g walnuts 4 egg yolks 120 g sugar 180 ml milk 80 ml vegetable oil 200 g flour 16 g baking powder 4 egg whites 22 cm (8 in) baking tray 180°C - 350°F for 45 minutes divide into 3 1 long coffee beans 3 tablespoons of coffee a drop of water wet well 500 ml of sweetened cream chocolate flakes almond flakes leave in the refrigerator for 2 hours