Petticoat Tails

Cream together the butter, confectioner's sugar and vanilla until light and fluffy. Stir in the flour and salt. Press and mold dough into a long smooth roll about 2 inches in diameter. Wrap in plastic wrap and chill for several hours or overnight. Preheat oven to 400 degrees F (205 degrees C). Slice chilled roll into 1/8 to 1/16 inch thick slices. Place on ungreased baking sheets and bake at 400 degrees F (205 degrees C) for 8 to 10 minutes or until lightly browned.