In a pan, mix the water and sugar and heat to 110°C.
Remove from the heat and chill for five minutes before adding the egg yolks which have been beaten well.
Mix again with a whisk really quickly and strongly.
In small flan molds, pour a layer of caramel (this can be bought or homemade) then top with the foamy mixture.Place the molds into a steam oven at 98°C for approximately 20 minutes until set. Remove and allow to cool before refrigerating.
Serve with chocolate decorations and fresh raspberries.