Preheat oven to 350°F.
Oil a large bundt pan.
Sprinkle some chopped nuts in bottom of pan.
Cut biscuits into quarters with scissors.
Combine cinnamon and sugar in a bowl.
Roll each piece of biscuit in cinnamon and sugar mixture.
Layer biscuits and nuts in pan.
Melt butter and brown sugar, then pour over biscuits.
Bake 30-40 minutes.
Turn pan upside down on serving platter.