Iced Chocolate

Name: Iced Chocolate
Ingredients: 3/4 cup (180ml) whole or lowfat milk; 1 tbsp unsweetened cocoa powder, preferably Dutch-process; 8 x chocolates or 4 ounces (115g) bittersweet or semisweet chocolate, chopped; 1 1/2 cup (6 ounces, 175g) ice cubes; 2-3 scoops chocolate ice cream or chocolate sherbet; 1-2 tbsp Kahluà or espresso (cooled), or to taste; Lightly sweetened whipped cream and chocolate shavings, for serving