1Mix butter, sugar and sour cream. Add dry ingredients. Mix well and form into rolls and wrap in plastic wrap. Refrigerate overnight. Slice 1/4 inch thickness or a little more. Place on greased cookie sheet.
Bake at 375^ for 10-15 minutes.
If rolling out for cookie chill in refrigerator for at least 30 minutes. Dip cutter in flour and cut in desired shapes. and bake as above.