A little sugar for sprinkling on top
Preheat oven to 425 degrees. Mix butter, sugar, egg, and vanilla thoroughly. Blend dry ingredients; add to sugar mixture alternately with sour cream. Blend until combined (don't over mix). Cover dough tightly and chill several hours or overnight.
Divide dough, sprinkle with flour, and roll out between parchment paper to 1/4" thick. Cut with a 2" cutter and shape you wish. Sprinkle with sugar. Bake 8-10 minutes until slightly brown.
See how easy that was? Sometimes easy is suprisingly best. What is also very nice is that they can sit on any dessert table, for any occassion. Let me know what you think.