Cooking Steps

1. 

   Step1:Soften butter, add sugar powder and beat until it is bulk

2. 

   Step2:Add the sifted ripe yolk and stir evenl

3. 

   Step3:Sift low flour, cornstarch and salt into butter paste. Knead into dough and refrigerate for 1 hour

4. 

   Step4:Take it out of the refrigerator and knead it into 10g doug

5. 

   Step5:Put it in the baking tray and press it with your thumb. The edge will crack

6. 

   Step6:Heat up and down for 165 ℃ and bake in the middle for 15 minute