Halve the avocados, remove the stone and remove the pulp from the skins. Scrape out the vanilla pod.
Puree together with the remaining ingredients, except for the pomegranate, in a blender or with a hand blender until creamy and fold in the whipped cream. Put in dessert bowls and chill.
Break open the pomegranate and remove the seeds. Sprinkle these over the mousse and serve.