Cut the biscuits into quarters.
Combine ½ cup sugar and ½ teaspoon cinnamon.
Roll the biscuit pieces in the cinnamon-sugar mixture.
Place the coated pieces in a greased and floured Bundt pan.
Melt the butter or margarine.
Add ¾ cup sugar and ¾ teaspoon cinnamon to the melted butter.
Pour over the biscuits.
Bake at 350°F for 30–35 minutes.
Let stand for 10 minutes.
Invert onto a serving plate.