Cooking Steps

1. 

   Step1:Boil the eggs. Cool them in cold water. Take out the yolk. Sift the flour into fine powder. Set asid

2. 

   Step2:Butter softens. Add sugar and salt to beat until slightly white

3. 

   Step3:Add the prepared yolk powder into the butter and stir wel

4. 

   Step4:Sift the low flour and cornstarch into the butter. Stir well with a spatula to form a dough

5. 

   Step5:Refrigerate the dough in a fresh-keeping bag for 20 minute

6. 

   Step6:Take out the dough, rub it into several small balls and spread them evenly on the baking tray. Press the thumb on the ball to form a natural crack. Preheat the oven for 160 degrees. Heat it up and down. Bake it in the oven for 16 minute