Melt the dark chocolate and mix with the sunflower oil. Transfer to an electric airbrush. Take the chocolate mousse quenelle out of the blister. Put on a tray and brush the frozen quenelles with the chocolate on both sides. Cover with plastic and defrost them in the fridge or store in the freezer.
Cook all the ingredients together for 2 minutes and cool over ice water. Let it sit overnight in the fridge and cut with a hand mixer into a gel. Transfer to a piping bag.
Cook the miso, sake, sugar and mirin together until it caramelizes. At this point add the cream and reduce to a fine caramel sauce.
Whip the cream together with the seeds of the vanilla pod. Transfer to a piping bag with St.-Honoré spout.