Brown Sugar Refrigerator Cookies

Step 1: Beat butter and brown sugar together until light and flutty.

Step 2: Add egg and vanilla and beat well.

Step 3: Sift flour, baking soda, and cream of tartar together.

Step 4: Gradually add flour mixture to butter mixture, beating well after each addition.

Step 5: Blend in nuts.

Step 6: Separate dough into four parts.

Step 7: Roll each part into a cylinder about 1 1/4" thick.

Step 8: Wrap in plastic wrap and refrigerate at least 2 hours.

Step 9: Preheat oven to 350°F.

Step 10: Remove dough from refrigerator, unwrap, and slice on a slight diagonal.

Step 11: Place about 1" apart on ungreased baking sheets.

Step 12: Bake at for 15 minutes, or until lightly browned on edges.

Step 13: Cool on wire racks.