Petit Beurre -- Tea Cookies - cooking recipe

Ingredients

3 1/2 all-purpose flour
1/2 cornstarch
1/4 teaspoon salt
1/2 teaspoon baking powder
1/2 teaspoon baking soda
12 tablespoons unsalted butter, softened
1 cup granulated sugar
3 egg yolks (large...save whites for another use)
1/2 cup milk

Preparation

Sift dry ingredients together.
Beat together softened butter and sugar on medium speed for about a minute.
Beat in egg yolks, one at a time, beating smooth after each addition.
Add half the flour mixture.
Add milk, then add the remaining flour mixture.
Scrape dough onto a piece of plastic wrap.
Press it into a rectangle about 1/2 inch thick.
Wrap and chill for several hours or up to 3 days.
When you are ready to bake, preheat oven to 325F and place parchment paper onto baking sheet.
Place dough on a floured work surface and lightly flour it.
Roll dough into a 12-inch square.
Cut the square in half, then roll each half into a 9x12 inch rectangle.
With the tines of a fork, pierce the dough at 1/2 inch intervals.
Cut each half of dough into 24 rectangles of 3x11/2-inch each.
Transfer cuts-out to baking sheets and bake for about 15 to 20 minutes, or until they are lightly golden all over.
Slide parchment paper along with petit beurre onto wire racks to cool.