Preheat oven to 400 degrees. Lightly oil two cookie sheets or spray with vegetable spray. Combine Mix, sugar and baking powder and toss to combine. Cut in butter until mixture resembles a coarse meal.
Beat egg and buttermilk together and add to dry ingredients. Stir to combine. Dough will be stiff. Drop by tablespoonful onto prepared cookie sheet, about 1 inch apart. Bake 10-12 minutes or until tops are lightly browned.