Frozen yogurt (also known as frogurt or by the tradename Froyo) is a frozen dessert made with yogurt and sometimes other dairy and non-dairy products.
Frozen yogurt is a frozen product containing the same basic ingredients as ice cream, but contains live bacterial cultures.
Usually more tart than ice cream, as well as lower in fat, it is different from ice milk and conventional soft serve.
Unlike yogurt, frozen yogurt is not regulated by the U.S. Food and Drug Administration (FDA), but is regulated by some U.S. states, such as California.
Frozen yogurt was invented in New England, United States, in the 1970s.
The American frozen dessert chain Pinkberry is credited for allowing people to customize their frozen yogurt with toppings, while another chain, 16 Handles is credited for introducing multi-choice self-service machines.
Frozen yogurt consists of milk solids, a sweetener, milk fat, yogurt culture, plus flavorings and sometimes coloring.
Milk fat comprises about 0.55–6% of the yogurt; added in quantities inversely proportional to the amount of milk solids, it lends richness to the yogurt.
Frozen yogurt can be made in a soft serve freezer much the same way as soft ice cream.