Cooking Steps

1. 

   Step1:Add the butter to the sugar powder and beat evenly with an electric stirre

2. 

   Step2:Add egg in several times and mix well. Then add a little vanilla essence and mix well again

3. 

   Step3:Sift in the flour. Mix well with a scrape

4. 

   Step4:Roll the dough into pieces and put it in the refrigerator for half an hour. Then take it out and buckle it into shape with a German knot mold

5. 

   Step5:Brush the surface of the biscuit with egg white and sprinkle with coarse suga

6. 

   Step6:Preheat the oven to 170 degrees, heat the middle layer up and down for about 20 minutes. Lower the temperature in the middl