Traditional London Syllabub

Mix white wine (or Sherry) with sugar, lemon zest, and a little lemon juice.

Allow to infuse for a couple of hours.

Pour in double cream and whisk until the mixture reaches the 'soft peak' stage.

Ladle into elegant glasses and chill for at least 4 hours.

Ideally, the mixture slightly separates during chilling, leaving a clear layer of wine at the bottom and a thick espuma on top.

Grate a little nutmeg over the top before serving.