1 box yellow cake mix with pudding
3/4 c. oil
4 eggs
1 c. brown sugar
1 c. sour cream (may substitute 1 c. buttermilk)
3 tsp. cinnamon
Nuts (optional)
Raisins (optional)

Mix cake mix, oil, eggs and sour cream. Layer half in 9 x 13 x 2-inch pan. Cover with half cinnamon and sugar mixture. Finish with batter, then rest of cinnamon and sugar mixture; swirl well with knife. Bake at 350 degrees for about 40 minutes. Add nuts and raisins to cake batter, if desired.