Cream butter and sugar until light and fluffy. Sift dry ingredients together. Slowly alternate adding buttermilk and dry ingredients to the butter mixture. Until completely mixed. Line baking sheet with parchment paper. Use ¼cup or medium ice cream scoop to dispense batter, 2 inches apart.
Bake in preheated oven for 12-15 minutes.
Cookies will spread.Let cool. Fill with large scoop of softened ice cream of choice. Cover with second cookie. Place sandwiches on baking sheet and freeze for 1 hr.