1. When choosing, choose a uniform size so that it can be cooked together
2. Cut beef into pieces and set aside
3. Remove the diced peppercorns after frying
4. Pour the potatoes into the stir fry, put the beef and the aniseed
5. Let's fry together until you see the potatoes wilt, put in soy sauce, no potatoes
6. You can put it in the refrigerator when you're done, eat and get some
