1. Prepare ingredients: 20g of oil, 5g of salt, 200mg of cabbage core, 0g of coriander10g, 0g of ginger10g, 0g of onion10g, and 20g of prawn.

2. Cut off the sharp corners of the shrimp, then remove the shrimp line, tear the cabbage core into pieces by hand, add oil to the pot, stir-fry the cabbage core until the cabbage is slightly soft, and take it out for later use.

3. Heat another pan of oil, add minced onion and ginger, stir-fry until fragrant, add prawns, stir-fry cabbage, add salt and coriander, and stir-fry evenly.