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

Mix all ingredients together. Bake at 350 degrees for about 35 minutes.

FILLING:

1/4 c. plain flour
1 c. milk
1 stick butter
1/2 c. Crisco
1 c. sugar
1 tsp. vanilla

Mix flour and milk until thick. Set aside. Let completely cool. Cream together butter, Crisco, sugar, vanilla - add flour mixture; beat until fluffy. After cake is cool, split with thread. Spread filling between cake.