1 (12-ounce) can evaporated milk
1 1/2 cups sugar
3/4 cup butter or margarine
6 egg yolks
1 1/2 teaspoons vanilla extract
2 cups chopped pecans, toasted
1 1/2 cups sweetened flaked coconut
Stir together first 4 ingredients in a heavy 3-quart saucepan over medium heat; bring to a boil, and cook, stirring constantly, 12 minutes. Remove from heat; add remaining ingredients, and stir until frosting is cool and of spreading consistency.