Icing for German Chocolate Cake

I used a box mix for a German Chocolate cake.
You could use 1 1/2 mixes if you want to make a 3 layer cake.
Be sure to let cake cool completely before icing.
FYI:
The 'German' in the name refers to the type of chocolate,
not that the cake originated from Germany.

In a saucepan pour 1 cup of whipping cream (or evaporated milk),
1 stick of butter,
1 cup of sugar,
and 3 egg yolks.

On med/high heat bring to a boil, stirring constantly.

Reduce heat and cook 1-2 minutes, stirring constantly.

Remove from heat and add 1 1/3 cup of chopped pecans
and 1 1/3 cup dried coconut.
Stir throughly.

Let cool until spreadable.

A traditional German Chocolate Cake does not have the sides iced,
just the middle layer and the top.

This was made for Emma's birthday.
I have made this before using 3 layers of cake, icing between each layer.