1. Pour a small amount of oil into the pan and fry the shrimp shells. Add the shrimp oil to a bowl of water and cook for 2 minutes
2. Strain the shrimp soup
3. Pour the shrimp soup back into the pot, add minced garlic and salt, and bring to a boil
4. Add the washed lettuce
5. Fire for three minutes
6. Out of the pot
Tips:You must use a large stir-fry so that the lettuce is tender
