This is my favorite cookie recipe, and they really are very similar to what they call Chinese Cookies in the New York bakeries. People really like them. They have a great flavor and an interesting texture. They are crisp and a bit crumbly once bitten into without being hard, and a great cookies for mailling. They are also versatile. The recipe is for vanilla cookies, but there are other decorating and add-ins that are listed in the recipe that make them even better. My favorite is to make them into marble cookies, as explained in the recipe. You can substitute all-purpose flour for the cake flour with very similar results, which I do quite often. Instead of 3 1/2 cups, use 3 cups plus 2 tablespoons all-purpose flour and 1/4 cup cornstarch, sifted before using. Also note that if using an egg wash to adhere decorations to the dough log, you can use just a yolk or white you have saved from another use instead. The time is estimated based on the marlbe cookie variation. It will take less if you're making them plain. It does not include chilling time.