1. Ingredients: 600 grams of wheat flour, 150 grams of beef (fat and lean), whole milk powder, sesame seeds, eggs, onions, tomatoes, salt, MSG, white sugar, yeast, pepper, butter Appropriate amount of each.

2. Method: Chop the beef into puree, wash and chop the onions and set aside. Then slowly add 300 grams of flour to water, yeast, and an appropriate amount of sugar, mix them into a dough, and let it rise for a while. Dissolve 2 grams of bread improver with hot water, add the remaining flour, milk powder, water, remaining sugar and butter and mix well. When the fermented dough has doubled in size, put all the dough together, knead it evenly, and then ferment it for the second time. Divide the dough that has been fermented for the second time into small pieces, roll it into a round ball for about 10 minutes, roll it again, put it into a baking pan and let it rise. When the volume has doubled, brush it with egg wash and sprinkle with sesame seeds. When the oven temperature reaches 190 degrees, put the billet into the oven and bake for about 8 minutes. When it pops up when pressed with your hands, it will come out of the oven when the surface turns red. Mix minced onion, pepper, refined salt, monosodium glutamate and beef puree and fry into beef patties. After the bread is completely cooled, cut it open along the middle with a knife, add beef patties and two slices of tomatoes, and it's ready to eat. It's delicious.