Because of its description as a fortified wine, sherry is best served in a wine glass, or a slightly smaller version of a wine glass known as a sherry glass. These glasses are traditionally about 2-4 ounces. This size is perfect for trying sips of sherry, similar to how one might enjoy a glass of port wine. Sherry glasses are petite, elegant glasses, similar to cordial glasses and excellent for serving after-dinner spirits, cordials, and of course, sherry.