Put white flour, yeast, warm water, butter and sugar in a basin to form dough, cover it and ferment for about two hours. Cut the dough and see that there are many small holes in the cross section to form dough. Chop the meat floss and shallots into pieces for later use. Chop the beef and garlic together, so that the garlic flavor can fully enter the minced beef. Although the slag-dropping sesame seed cake is made of pork, beef can be made by "slag-dropping". Pull the dough into a dough with the same size, press it into a two-inch pancake, and punch a small hole in it with a toothpick to avoid bulging when baking. Brush the pepper, pepper, cumin and salt evenly on the cake. Finally, put the cake blank into the oven, adjust it to 190 degrees, bake it for 20 minutes, and the home version of "slag-dropped sesame cake" will be freshly baked.