A milkshake is a sweet, cold beverage which is made from milk, ice cream or iced milk, and flavorings or sweeteners such as fruit syrup or chocolate sauce. Milkshakes are usually served in a tall glass with a straw, and whipped cream may be added as a topping. Several popular milkshake flavors include vanilla, chocolate, and strawberry. In some Commonwealth nations and some parts of New England and New York City in the United States, milkshakes are made without ice cream. In those areas, a milkshake made with ice cream is commonly called a frappe.
Full-service restaurants, soda fountains, and diners usually prepare and mix the shake “by hand” from scoops of ice cream and milk in a blender or drink mixer using a stainless steel cup. Most fast food outlets do not make shakes by hand with ice cream, with a few exceptions such as the US chains Jack in the Box and Carl’s Jr. Instead, they make shakes in automatic milkshake machines which freeze and serve a premade milkshake mixture consisting of milk, a sweetened flavoring agent, and a thickening agent. Some fast-food restaurants such as Dairy Queen serve milkshakes which are prepared by blending soft-serve ice cream (or ice milk) with sweetened, flavored syrups such as chocolate syrup and fruit-flavored syrup and milk.