Ingredients

5 ounces bittersweet chocolate (preferably 70 percent cacao), chopped

4 ounces semisweet chocolate (preferably 55 percent cacao), chopped

4 cups milk

1 cup heavy cream

2 tablespoons packed light-brown sugar, plus more to taste

Pinch of salt

Preparation

Heat all ingredients in a large saucepan over medium heat, whisking, until chocolate has melted and mixture is hot. Stir in more sugar, if desired.