Ants climb trees. Give sweet potato powder a nice name: ants climb trees. Sweet potato powder is soaked in hot water in advance to be soft without hard core. Chop onion, ginger, garlic and red pepper. Chop the fat and lean pork according to the proportion of 37%, without lumps. Heat oil in a hot pan, add pork and stir fry, stir fry minced ginger and garlic until fragrant, add lobster sauce and meat and stir fry with soaked vermicelli. Add light soy sauce, season with proper amount of salt, add clear water and simmer for two minutes, add red pepper and shallot to improve the taste and color, and then serve.