Hershey's German Chocolate Cake

Ingredients

• Hershey's cocoa
  ¼ cup
• boiling water
  ½ cup
• plus 3 tablespoons butter or margarine

  softened
  1 cup
• sugar
  2¼ cups
• vanilla extract
  1 tsp
• eggs
  4 unit
• all-purpose flour
  2 cups
• baking soda
  1 tsp
• salt
  ½ tsp
• buttermilk or sour milk
  1 cup
• pecan halves (optional)
  1 unit
• Coconut pecan frosting (recipe follows)
  1 unit