Syllabub is a light, frothy English dessert made by whipping cream or milk with wine, cider, or another spirit until airy, often sweetened and flavored with lemon zest, nutmeg, or cinnamon. It dates back to at least the 16th century, when it was traditionally made by pouring wine or cider into fresh milk while whisking.
Modern versions typically use cream rather than milk as the base and may be layered with fruit such as berries or citrus, or flavored with sherry, brandy, or coffee.
It's usually served in individual glasses, either as a light dessert on its own or as a palate-cleansing finish to a meal.