Mexican wedding cookies

Russian tea cake is a kind of pastry, often eaten around Christmas in the United States. Russian tea cakes have a relatively simple recipe, generally consisting entirely of flour, water, butter, and ground nuts, the nut variety depending upon the cookie type. After baking, they are rolled in powdered sugar while still hot, then coated again once the cookie has cooled. European recipes rely upon coarsely chopped hazelnuts, almonds, or walnuts. Mexican wedding cookies traditionally use coarsely chopped pecans.

Source: Wikipedia