1 box Duncan Hines butter cake mix
2/3 c. oil
4 eggs, slightly beaten
2/3 c. milk

Mix well and beat. Pour into 12x18 cookie sheet. Bake at 350 degrees for 20 minutes; cool slightly.

CRUMBS:

2 sticks butter
1 stick butter, melted and cooled slightly
4 c. flour
2/3 c. brown sugar
2 tsp. cinnamon
2/3 c. granulated sugar
2 tsp. vanilla

Put in large bowl and pour melted shortening over and mix with spoon or fork. Don't over mix or crumbs will be too small.

Spread over cake (I put on by hand so that it is spread evenly and all holes filled in). Put back in oven for 20 minutes longer; watch to see that it doesn't brown too fast. Cool, then sprinkle with powdered sugar.