Cooking Steps

1. 

   Step1:Soften butter at room temperature and stir with sugar powder evenl

2. 

   Step2:Sift the yolk and put it into the butter and mix wel

3. 

   Step3:Sift low gluten flour, cornstarch and salt into it, mix with hands to form a loose ball. Refrigerate for 1 hour

4. 

   Step4:Come out and knead it into small balls, press the natural cracks in the itinerary, then put it into the oven with the preheating temperature of 170 degrees, and bake for 15 minutes.