The recipe for these great cookies is credited to The Crown Room, the employee cafeteria at Hallmark Cards, in Kansas City. These cookies are soft and more cake-like than typical cookies and have great flavor.
Place margarine and 1 3/4 cups sugar in large mixing bowl; beat with electric mixer until creamy. Add eggs and vanilla and beat 1 to 2 minutes more.
In a separate bowl, stir together flour, salt, baking soda and baking powder. Add dry ingredients alternately with sour cream to creamed mixture. Mix 2 minutes or until dough is smooth. Chill dough for 30 minutes. Dough will be very soft, but resist the temptation to add more flour.
Preheat oven to 350. Shape tablespoonsful of dough into balls. Combine remaining 1/4 cup sugar and cinnamon. Roll cookie balls in cinnamon-sugar mixture, then place 2 inches apart on ungreased cookie sheet. Bake 10 minutes or until golden brown.