Ultimate Supreme German chocolate cake🥮

German chocolate cake- 1/4 oz German sweet chocolate bar ,1/2 cup of hot water, 2 cups of sugar, 1 cup of butter, 4 eggs ,3 cups of all purpose flour ,1 and 1/2 teaspoon of baking soda ,1 and 1/2 teaspoon of baking powder, one cup of buttermilk and one teaspoon of vanilla extract. German coconut topping- one cup of sugar ,one cup of evaporated milk ,1/2 cup of butter, three egg yolks ,1 and 1/2 cup of flaked coconut, one cup of chopped pecans and one teaspoon of vanilla extract. baked on 350 for 35 to 45 minutes