Crackled Sugar Cookies - cooking recipe

Ingredients

1 1/4 cups sugar
1 cup butter, softened
3 large egg yolks, beaten
1 teaspoon vanilla extract
2 1/2 cups sifted all-purpose flour
1/2 teaspoon cream of tartar
1 teaspoon baking soda

Preparation

Preheat oven to 350 degrees.
Lightly grease two baking sheets.
Cream sugar and butter together until light.
Beat in yolks and vanilla.
Sift together the measured sifted flour, baking soda and cream of tartar then fold into the butter sugar mixture.
Form dough into walnut size balls.
Place 2\" apart on the cookie sheets.
Do not flatten.
Bake for about 11 minutes until the tops are cracked and just turning color.
Cool on cookie sheet 2 minutes.