Whip the cream firmly with a teaspoon of sugar. Set aside.
For the marshmallow fluff, place the egg white and fine sugar in a food processor. Mix briefly first and then whip on high speed for about 5-8 minutes until a firm mass forms. Pipe a thick rim of marshmallow fluff on the edge of your cups and lightly caramelize with a blowtorch.
Bring the milk to a brief boil. Add the chopped chocolate and stir well with a whisk until the chocolate is completely melted and the chocolate milk is smooth.
Pour the warm chocolate milk into the cups and add a scoop of whipped cream to each cup with an ice cream scoop. Serve immediately and enjoy!