In this elegant entrée, the flavours of chicken, calves’ sweetbreads and dried cèpe mushrooms are enriched with egg and emulsified with cream to form a firm mousse ready for filling the sausage skins.
In advance, or the day before, soak the sweetbreads in cold water with a good pinch of salt for about 1 hour.
Place all the court-bouillon ingredients in a saucepan, bring to the boil, skim and simmer for 20 minutes. Strain, then add the sweetbreads and poach for around 5-8 minutes, or until they feel firm. Drain, remove the skin while they are warm and break i