Old Fashioned Sugar Cookies

½ cup butter

1½ cups sugar

2 eggs

1 tsp. vanilla

1 tsp. salt

3 cups flour

1 cup sour cream

½ tsp. baking powder

½ tsp. baking soda

Cream butter to consistency of mayonnaise. Add sugar gradually while continuing to cream. Add eggs, beat well. Stir in vanilla. Mix and sift flour, salt, powder, and soda; add to creamed mixture alternately with sour cream. Drop by heaping tsp. onto greased cookie sheets. Flatten into 2" circles, sprinkle with sugar (cinnamon too if desired). Bake in 400-degree oven for 10 to 12 minutes. (You can add 1 cup of seedless raisins or 2 squares of chocolate to batter.)