1 box Duncan Hines white cake mix
1 instant pistachio pudding
3/4 c. oil
3/4 c. water plus 1 tbsp.
4 eggs
Chopped nuts
Cool Whip

FROSTING:

2 tbsp. soft butter
1/3 c. water
2 c. sugar (powdered)
1/2 tsp. vanilla

Beat 4 minutes. Put 9 x 13 inch pan. Top with chopped nuts. Bake at 350 degrees for 40 minutes. Punch holes with a 2 prong fork. Pour mixture in frosting over cake. Cool. Add Cool Whip to top. Sprinkle with frozen coconut.