The Epicure's Almanac or Diary of Good Living
July 29th : PORTER CUP
Mix in a tankard or covered jug, a bottle of porter, and an equal quantity of table-ale; pour in a glass of brandy, a dessert-spoonful of syrup of ginger, add three or four lumps of sugar, and half a nutmeg grated. Cover it down, and expose it to the cold for half an hour; just before sending it to table, stir in a tea spoonful of carbonate of soda.
In many parts of England, cup is not considered perfect without the introduction of burrage, an excellent substitute for it is the fresh cut rind of a cucumber.