Exercise:

1. Put oil in the pan, add onion and stir-fry until fragrant. Stir-fry the beef until it changes color, add a piece of butter until it melts, then add 1 tablespoon soy sauce, 1 tablespoon oyster sauce, half a spoonful of salt and a little black pepper to taste, and add green pepper and red and yellow pepper and stir-fry until it is broken.

2. Put the fried fat cow in the middle of the cake, fold it around and wrap it with stuffing.

3. Coat the front with egg yolk liquid, sprinkle with a few black sesame seeds, and bake in an air frying pan 180 degrees 10 minutes to make the Sam beef roll fragrant and full.