Sugar Cookies

This recipe is from my mom. It's my favorite sugar cookie recipe ever!

1 C butter
2 C sugar
1 C sour cream
2 eggs
1 tsp vanilla
1/2 tsp baking soda
4 tsp baking powder
1/2 tsp salt
5 C flour

Cream butter & sugar add sour cream, eggs, & vanilla. In a separate bowl mix baking soda, baking powder, salt & flour. Mix everything together and put in freezer for 1 hour. Dough will still be sticky. Roll out and cut. Bake on an ungreased cookie sheet at 350 degrees for 8 minutes. Don't let them go brown. Frost