Cut the vanilla pod in half lengthwise and scrape out the pulp with the back of a knife. Boil up cream, milk, vanilla pulp and pod, 100 g sugar and cinnamon. Leave to stand for 10 minutes with the stove switched off. Pass through a sieve. Whisk the egg yolks and eggs. Gradually stir in hot cream. Place 4 flat moulds on the fat pan of the oven and fill with the egg milk.
Place the pan in the preheated oven (electric cooker: 125 °C/ circulating air: not suitable/ gas: level 1) and pour hot water over it so that 2/3 of the moulds are in water. Cook the cream for 50-60 minutes. Remove from the fat pan, allow to cool and chill for several hours, preferably overnight. Sprinkle each crème brûlée with 1 tablespoon of sugar. Caramelise with a gas burner. Decorate with 1 slice of starfruit and 1 physalis
12 hours waiting time