Melt the butter and mix in the sugar.

Add the eggs and vanilla to the sugar/butter mixture. Mix well.

Add the dry ingredients to the mixture. Then add in the sour cream. Mix well until all the ingredients are blended.

Roll out the dough on a floured surface. Make cut outs with cookie cutters.

Bake at 400F, on a greased cookie sheet, for about 8 minutes or until they start to get slightly browned.