Mix powdered sugar, butter, egg, ... baking soda, and cream of tartar. Cover and refrigerate ... minutes. Arrange some cookies on pieces of string to ... until golden, 7-8 minutes.
Combine flours, spice, baking soda ... mixture and sour cream alternately, beating well after each ... thick. Cut out cookies with a 6 inch pumpkin ... and hardens upon cooling.
Heat oven to 350 degrees. ... purpose flour, whole wheat flour, baking soda, salt, and cream of tartar at low speed. ... around edges. Cool cookies 1 minute before removing from ... dough about 30 minutes.