1 pkg. Devils food cake mix
3 egg yolks
1 tsp. vanilla

Substitute buttermilk for water when mixing cake mix. Add all ingredients and mix. Bake as usual. When done poke holes in cake with fork and pour icing over. Let set 24 hours before serving.

ICING:

1 can evaporated milk
1 1/2 c. sugar
1 lb. coconut
22 large marshmallows

Bring milk and sugar to boil. Add marshmallows and reduce heat. When marshmallows are melted remove and add coconut and pour over cake.