Preheat oven to 350 degrees F. Mix sugar and cinnamon in plastic bag. Cut biscuits into quarters. Shake 6 to 8 pieces at a time in cinnamon sugar mixture. Place biscuit pieces in greased 10-cup bundt pan.
Mix leftover cinnamon sugar mixture with melted butter. Pour over biscuits.
Bake 35 minutes or until golden brown. Cool in pan 5 minutes. Invert onto serving plate. Serve warm.