whipped cream - store-bought or homemade for serving
Instructions
In a medium pot over low heat, combine 5 cups whole milk, 1 (14-ounce) can sweetened condensed milk, 2 tablespoons unsweetened cocoa powder, 4 ounces chopped semi-sweet baking chocolate, and 2 teaspoons vanilla extract.
Simmer on low for about 15 minutes, stirring often to prevent burning. Once heated through, remove the pot from the heat. Ladle into mugs and top each serving with whipped cream.