A fishcake (sometimes written as fish cake) is a food item similar to a croquette, consisting of a filleted fish and potato patty sometimes coated in breadcrumbs or batter, and fried. Fishcakes are often served in British fish and chip shops.
The fishcake has been seen as a way of using up leftovers that might otherwise be thrown away. In Mrs Beeton's 19th century publication Book of Household Management, her recipe for fishcakes calls for "leftover fish" and "cold potatoes".[1] More modern recipes have added to the dish, suggesting ingredients such as smoked salmon and vegetables.