Heat oven to 450Â°.
Prepare Biscuit dough (enough for 10 to 12 biscuits) as directed on buttermilk bak ing mix package except do not knead.
Spread or roll dough on greased baking sheet into a rectangle, 10x8 inches.
Spread dough with 1 tablespoon soft butter or margarine.
Bake 10 minutes.
Serve hot, broken into pieces or cut into squares.