CAKE:

1 box yellow cake mix
1 c. water
1/4 c. oil
3 eggs

FILLING:

2 c. crushed graham crackers
3/4 c. chopped nuts
3/4 c. brown sugar
1 1/4 tsp. cinnamon
3/4 c. melted butter

Mix the cake ingredients well.

In a separate bowl, mix the filling ingredients. In a greased tube pan or 9 x 13 inch baking pan, pour 1/2 the cake batter, then sprinkle on 3/4 of the filling mix.

Pour on the remaining cake mix and top with the rest of the filling mix. Bake for 40 minutes at 350 degrees.