Preheat oven to 350°F. Generously grease Bundt pan with butter.
Open and separate the biscuits and cut each one into four equal pieces.
Mix together granulated sugar and ground cinnamon in a medium size bowl. Working in small batches, roll each piece of dough in the cinnamon sugar to coat.
Place the cinnamon sugar covered biscuits in the prepared pan.
In a small pan, melt the butter, mix the brown sugar and 1/4 cup of the cinnamon sugar. Bring to a boil and then remove from heat, stirring until the sugars completely dissolved.
Carefully pour the warm sauce over the biscuit dough.
Place pan in the oven and bake for about 30 minutes. Time may vary according to your oven.
Remove pan from the oven and let rest for about 5 minutes and then invert on a large dinner plate.