1.？ Soften the butter at room temperature, add the powdered sugar, and stir well until the color becomes lighter, like feathers.

2.？ Add the egg mixture several times and stir well.

3.？ Mix and sieve the powder, add it into butter, rub it with a scraper until the dry powder is invisible, and put it in the refrigerator for 30 minutes.

4.？ Take out the dough, roll it into a thickness of about 0.5cm~ 1cm, press it out with a die, and preheat it in the oven. The middle layer is about 170 degrees, and the surface is colored for about 15 minutes.