1. Add powdered sugar to butter at room temperature and stir until soft and white. Add the whole egg liquid in several times and mix well;

2. Divide 1 into two parts, add material 2 and material 3 respectively, and stir evenly to form dough (1 dough, natural color and cocoa color after molding);

3. Wrap the two doughs with plastic wrap and put them in the refrigerator 10- 15 minutes;

2.4. After taking it out, roll it flat, take half of it, slightly stick it, carve the shape with a mold, brush a layer of egg white on the surface, dip it in black sesame seeds, put it in the furnace, bake it in 10- 15 minutes 17, and take it out after cooling slightly.