I finally managed to perfect my sugar cookie recipe. I hope you like them too! 1 1/4 cups white sugar 1 cup butter 3 egg yolks 1/2 teaspoon baking soda 1/4 teaspoon cream of tartar 1 teaspoon vanilla extract 2 1/2 cups all-purpose flour 1) Preheat your oven to 350 degrees F (180 degrees C). Lightly grease 2 cookie sheets. 2) Cream together sugar and butter until smooth. Beat in your vanilla and egg yolks. 3) Add flour, baking soda, and cream of tartar. Mix thoroughly. 4) Form dough into walnut size balls and place 2 inches apart on cookie sheet, and don't flatten them. Bake 10 to 11 minutes, until tops are pale golden and slightly cracked.