a boil, then reduce the heat and simmer at a very low boil for 30 seconds, whisking constantly. remove from the heat and add the chopped chocolate, stirring until smooth. then stir in the remaining 1 cup cream. pour the mixture into a large bowl, scraping the saucepan as thoroughly as possible, and set a mesh strainer on top of the bowl. warm the milk, sugar, and salt in the same saucepan. 