1/2 c. sour cream
1/2 c. butter
1 egg
1/2 c. walnuts
1 1/2 c. flour
1 tsp. baking powder
1/2 tsp. salt
1/4 tsp. baking soda

Mix first 3 ingredients together until smooth. Add rest of ingredients. Stir until moistened. Drop by 1/4 cup portions onto ungreased sheet. Bake at 400 degrees for 12-15 minutes.