The Old Fashioned is a classic cocktail made with whiskey, sugar, bitters, and a twist of citrus peel. A sugar cube is muddled with bitters and a splash of water, then mixed with whiskey and served over ice in a rocks glass. It's garnished with an orange twist or cherry, known for its smooth, balanced flavor that highlights the whiskey. This timeless drink dates back to the early 19th century and is a staple in bars worldwide.