Black Bottom Hot Chocolate Mugs with Marshmallow Whipped Cream

1 1/2 cups chilled heavy whipping cream, divided

1/2 cup plus 1/3 cup marshmallow cream (fluff), divided

1/3 cup plus 4 heaping tablespoons hazelnut spread (Nutella), divided

3 1/2 cups whole milk

Chocolate sprinkles or chocolate shavings for garnish

Beat 1 cup heavy cream and 1/2 cup marshmallow cream in the bowl of an electric mixer on high speed with the whip attachment until medium peaks form.  Refrigerate until needed.

In a medium heavy bottom saucepan, whisk together 1/3 cup hazelnut spread, remaining 1/3 cup marshmallow cream, 3 1/2 cups milk, and remaining 1/2 cup heavy cream over low heat until smooth and hot. 

To serve, place one heaping tablespoon of hazelnut spread into the bottom of each of 4 clear glass mugs.  Ladle in the hot chocolate carefully (do not stir) over spread, then top with a large dollop of the whipped cream.  Garnish with sprinkles or chocolate shavings and serve with extra whipped cream.