Chinese Fans - cooking recipe

Ingredients

2 cups all-purpose flour
1 1/2 tsp. baking powder
1/4 tsp. salt
10 Tbsp. unsalted butter at room temperature
1 cup sugar
1 tsp. pure vanilla extract
1 large egg
1 Tbsp. milk
zest of 1 lemon finely grated
1 large egg white lightly beaten

Preparation

Preheat oven to 350.
Line 2 nonstick baking sheets with baking mats.
Sift together flour, baking powder and salt.
Set aside.
In a bowl, use an electric mixer fitted with a paddle attachment.
Cream the butter and 3/4 cup sugar until the mixture is light & fluffy.
Add the vanilla, milk, egg and lemon zest. Slowly add dry ingredients.
When well mixed, remove the dough from the bowl.
Wrap the dough in plastic wrap and refrigerate until firm, about 1 hour.
Divide dough into 4 equal parts.
Row out each piece of dough between 2 pieces of plastic wrap to form a rough circle 8 inches across and a 1/4 inch thick.
Peel off the top piece of plastic wrap, and use a pastry wheel to cut the circle into 6 equal wedges.
Using the back of a knife, mark each cookie with 3 or 4 lines radiating from the point of the triangle. Brush with egg white.
Sprinkle each group of wedges with 1 Tbsp. sugar.
Transfer to cookie sheets.
Bake until crisp and golden brown, 10-12 minutes.
Cool on wire rack.