rusk

A rusk is a hard, dry biscuit or a twice-baked bread. It is sometimes used as a teether for babies. In some cultures, rusk is made of cake, rather than bread: this is sometimes referred to as cake rusk. In the UK, the name also refers to a wheat-based food additive. International variations Argentina In Argentina, rusk is called tostadas de mesa (literally "table toasts"), slices of twice-baked bread generally available in supermarkets in plain and sweetened variants. Cake rusk is called bay biscuit, its ingredients are egg, sugar, oil, self-rising flour, and vanilla.