Cooking Steps

1. 

   Step1:Butter softens. It can be pressed down at normal temperature. Don't melt i

2. 

   Step2:Until soft and fluffy, whisk with sugar. Add egg yolk and beat wel

3. 

   Step3:Cell phone failur

4. 

   Step4:Knead it to three lights and wrap it in refrigerator for half an hour. It's not frozen.

5. 

   Step5:Bake at 140 ℃ for 15 minute