Sour cream (the fatter the cream, the airy mousse) and place in a blender and mix for 1 minute.

Gradually add the broken pieces of marshmallows (I used vanilla candy), whisking until then, until you get a smooth creamy mass. The density of the mousse can be "adjusted" by increasing or decreasing the amount of marshmallow. You can add oily nuts of your choice. Serve in a Martini glass, garnish with a few nuts, of course, if not using as a cream:) I used as impregnation for manna on the local recipe. Here's a simple, and at the same time, not just dessert. Chose it for my first recipe... Bon appetit!