Posset

Posset, a dietetic preparation, made by curdling milk with some acidulous liquor, such as wine, ale, or vinegar. White wine or sherry is usually preferred, but sometimes old ale is used. The milk is boiled, and whilst it is still on the fire the acidulous matter is added; if sherry, about a wine-glassful and a half to the pint of new milk is the proportion, or twice the quantity if ale. A teaspoonful of vinegar or of lemon-juice is sometimes used instead; one or two tablespoonfuls of treacle may be added, to sweeten. Taken at bedtime, it is used for colds and coughs.