This lemon mousse is the very first recipe in my collection, learnt at the age of 12 during a stay at my godmother's house. The cook at home had prepared it, and I immediately fell in love with its light texture and tangy flavour, enhanced by a touch of white wine - the surprise ingredient that adds a subtle, refined note. Since then, I've been making it regularly, whether in a large family salad bowl or in elegant verrines for cocktails or festive buffets.