Heat oven to 350°F and prepare cake pans.
Stir Baker’s chocolate into boiling water.
Combine flour, baking soda, and salt.
Beat butter and sugar until fluffy.
Add eggs one at a time.
Mix in melted chocolate and vanilla.
Blend until smooth.
Divide batter into pans and bake 30 minutes.
Let layers cool before frosting.
Heat milk, sugar, butter, yolks 12 minutes.
Stir in coconut, pecans, vanilla.
Layer cake with frosting, leaving sides unfrosted.
