
4 cups whole milk or dairy-free milk alternative
2 (4-ounce) bars 60%-cacao bittersweet chocolate, chopped; plus additional grated for garnish
2 (4-ounce) bars semisweet chocolate, chopped
⅛ teaspoon flaky sea salt
1 cup cold heavy whipping cream
¼ cup powdered sugar
Hard peppermint candies, crushed, for serving
Marshmallows, for serving