Preheat oven to 350°F
Grease a bundt pan
Cut biscuit dough into bite-sized pieces
Mix granulated sugar and cinnamon in a bowl
Coat dough pieces in the cinnamon sugar mixture
Place coated dough pieces in the bundt pan
Melt butter
Mix melted butter with brown sugar
Pour butter mixture evenly over the dough
Bake for 30 to 40 minutes
Let cool for 10 minutes
Invert onto a serving plate
Serve warm