Pour a little chocolate syrup onto a small plate. Put crushed graham cracker crumbs onto another small plate. Dip a large glass into the syrup and then into the cracker crumbs. Repeat with one more glass. Put glasses in the freezer.
In a blender, combine the chocolate ice cream with the Mozart Chocolate Cream Liqueur and blend until smooth. Divide mixture between the prepared glasses, top with mini marshmallows, and brown with a kitchen torch. Garnish with a piece of graham cracker and serve.