Chocolate Skillet Cake With Milk Chocolate Frosting Recipe

Name: Chocolate Skillet Cake With Milk Chocolate Frosting Recipe
Ingredients: 6 ounces finely chopped milk chocolate, between 25 and 48% cacao (about 1 cup, heaping; 170g); see our list of recommended milk chocolates here; 8 ounces heavy cream (about 1 cup; 225g); Salt, to taste; 6 ounces unsalted butter (about 12 tablespoons; 170g); 6 ounces black coffee, or hot tea such as Assam (about 3/4 cup; 170g); 1 1/2 ounces Dutch cocoa, such as Cacao Barry Extra Brute (about 1/2 cup, spooned; 45g); see note; 3 ounces finely chopped dark chocolate, roughly 72% (about 1/2 cup, heaping; 85g); 8 ounces light brown sugar (about 1 cup, packed; 225g); 1/4 ounce vanilla extract (about 1 1/2 teaspoons; 7g); 3/4 teaspoon (3g) Diamond Crystal kosher salt; for table salt, use about half as much by volume or the same weight; 4 large eggs (about 7 ounces; 200g), straight from the fridge; 4 1/2 ounces all-purpose flour, such as Gold Medal (about 1 cup, spooned; 125g); 1 1/2 teaspoons baking soda