1 box Devil's food cake mix
1 1/4 c. buttermilk
3 eggs
2 tsp. baking powder
1/4 tsp. baking soda
2 tsp. vanilla

FILLING:

1 can Eagle Brand milk
1 (7 oz.) jar marshmallow creme
1 lb. flaked coconut

FROSTING:

1 can chocolate fudge frosting