Melt the chocolate in a double boiler. Whip the sugar, eggs, egg yolk and lemon peel flavor in a water bath until white. Now stir the melted chocolate gradually into the egg and sugar mixture - still in a water bath. Prepare the red gelatine according to the instructions on the packet. Add and then take the whole thing out of the hot water bath.
Transfer the cream to a large bowl and slowly stir in the red wine. Put the now fairly liquid cream in the refrigerator for 1-2 hours. When it starts to set, whip the cream until stiff and fold in gently. With a funnel, the mass is now filled into 6 dessert glasses (I use martini glasses so that you have an order of magnitude).
The red wine mouse now has to stand cold for another 3-4 hours (also overnight if possible). Grate curls from the remaining chocolate with a peeler and sprinkle over the mousse.
Decorate and serve with fruit of the season and your choice (e.g. berries, physalis, etc.) and mint.