Can't wait to try these!
Preheat oven to 450. Cut sour cream into biscuit mix, add 7-Up. Makes a very soft dough. Sprinkle additional biscuit mix on board or table and pat dough out. Melt 1/4 cup butter in a 9 inch square pan. Place cut biscuits in pan and bake for 12-15 minutes or until golden brown.