Break the dark chocolate into small pieces and melt together with the After Eight in a water bath. Soak the gelatine in a little cold water. In the meantime, whip the cream until stiff. In a second container, stir the eggs and sugar until frothy. Brew the teabag with about a shot glass of hot water and let it steep for a moment.
Stir the melted chocolate into the egg-sugar mixture. Squeeze out the gelatine, dissolve it in the mint tea and stir into the chocolate mixture as well. Finally, carefully fold in the whipped cream until everything is a homogeneous mass. Cover the bowl with a lid and put it in the refrigerator overnight.
For the pineapple sauce, drain the pineapple and cut into large pieces. Puree with the juice of half a lemon. If the sauce is too thick, just add a little bit of the pineapple juice from the can.
After the cooling time, cut out cams from the mousse with a large spoon and arrange on dessert plates. Serve with the pineapple sauce.