Ho Ho Cake

Directions

1. 1
   Prepare chocolate cake mix according to package directions. Pour into an 11 x 17-inch pan or jelly roll pan.
2. 2
   Bake about 20 minutes.
3. 3
   Combine flour and milk; cook and cool.
4. 4
   Add 1 cup butter or margarine and sugar.
5. 5
   Beat until fluffy, 5 to 8 minutes.
6. 6
   Spread on cooled cake, keeping it about 1/2 inch from edge of pan.
7. 7
   Melt 1/2 cup butter or margarine and chocolate and cool.
8. 8
   Add egg, vanilla, hot water and powdered sugar.
9. 9
   Beat well and spread on top of cake, even with sides of pan.
10. 10
    Refrigerate and serve.