Boilo is a traditional Christmas drink hailing from the Coal Region of Pennsylvania. It usually consists of alcohol, honey, citrus fruit, and spices such as cinnamon, anise, caraway seeds, nutmeg, and cloves. There is no set recipe, and the choice of ingredients usually varies among the households.
It was usually made with moonshine, but nowadays, most common alcohol options include whiskey such as Four Roses, bourbon, or vodka. The drink is made by simmering water, citrus, spices, and honey, while the alcohol is usually added last, and the drink is then left on a slow boil.
It can be served immediately or kept refrigerated. Boilo is usually prepared as a homemade, comforting drink, best enjoyed at Christmas and during winter. It is always served warm, traditionally in small shot glasses. The drink is strong, and it should be slowly sipped.