The Idaho Spud is a candy bar made by the Idaho Candy Company. It has been produced since 1918 and is distributed throughout the Pacific Northwest region of the United States. The wrapper of the product bears the slogan "The Candy Bar That Makes Idaho Famous."
The candy bar consists of a cocoa-flavored marshmallow center which is covered with compound chocolate (a chocolate replacement made from cocoa, sugar, and vegetable fats) and sprinkled with coconut flakes. The oblong shape of the candy bar resembles a potato. The product has 180 calories and weighs 1.5 ounces or 43 grams.
Read more about Idaho Spud: In Popular Culture