Tunnel of Fudge Cake

1 package of fudge cake mix
2 3/4 oz instant chocolate pudding
6oz chocolate chips
8oz sour cream 1/2 C butter
4 eggs
3/4 C water

Combine butter and sour cream until soft and blended. Add all other ingredients except chocolate chips and blend well. Stir in chocolate chips. Grease and flour an angel food cake pan and bake at 350 for one hour.

Frosting

1 C milk
1/3 C flour
dash of salt
1 C sugar
1/2 C butter
1/4 C Crisco

Cook first three ingredients over low heat, stirring constantly until thick. Cool in fridge until cold. Have next three ingredients at room temp and then beat until creamy. Combine both mixtures, add 1 tsp. vanilla and beat until fluffy.