1) The recipe describes how to make limoncello, an Italian liqueur made from lemon peels, alcohol, sugar, and water. The lemon peels are soaked in alcohol for a week then a syrup of sugar and water is added and the mixture is bottled for 2-3 weeks before serving. 2) There are various legends about the origins of limoncello, but it is believed to have begun in the early 1900s when a woman on the island of Capri began making it in her home using lemons from her garden. 3) Limoncello is enjoyed around the world and in Campania often closes meals as a digestive, replacing coffee as a social ritual.