In a medium saucepan place 2 ounces semisweet chocolate, chopped or 1/2 cup semisweet chocolate chips. Stir in 1/3 cup sugar and 1/2 cup of milk. Cook and stir over medium heat until the mixture just comes to boiling.
Stir in 3 1/2 cups additional milk, a pinch of salt and cinnamon and heat through but do not boil. Remove from heat. Add your favorite toppings.