Eggnog, or egg nog , also known as egg milk punch, is a chilled, sweetened, dairy-based beverage traditionally made with milk and/or cream, sugar, whipped eggs (which gives it a frothy texture) and spirits such as brandy, rum or bourbon. The finished serving is often garnished with a sprinkling of ground cinnamon or nutmeg. Eggnog with a strong alcohol content keeps well, and is often considered to improve when aged for up to a year (as long as it is refrigerated). Eggnog is often provided to guests in a large punch bowl, from which cups of eggnog are ladled.