2, Hong Kong-style dessert double skin milk. First divide the milk into two or three small bowls, add sugar and stir. If there is some milk left in the two bowls, you can save it for making cappuccino. Heat the small bowl in the microwave oven for two minutes, and then cool it. Take a large bowl, peel off the egg white, add sugar and stir. Stir the egg white and milk together and beat well, then pour it into a small bowl with milk skin, and the milk skin will slowly float. Then steam the milk in a pot for 10 to 15 minutes, preferably with a layer of plastic wrap on the bowl. Steamed milk cools to form a layer of milk skin, which is double skin milk.