2. Sprinkle cocoa powder while it is hot. Pay attention to the action quickly, the coffee will solidify and agglomerate when it is cold, and even sink to the bottom of the cup;
3. Pour the milk into a small bottle and shake it up and down to shake out even milk bubbles;
4. Turn the handle of the coffee cup in the opposite direction, tilt the cup slightly forward, and then gently inject a small amount of milk bubbles into the deepest part of the coffee;
5. Finally, pull out the flowers with a toothpick. You must draw carefully to pull out the most beautiful flowers.