A baking tray (16) comprises a series of female mould members (17) and hollow male mould members (18) which have over lying flanges (19 and 20) so that when the moulds are secured together by the weight of the male mould portion, or alternatively by clips (21). The flanges close off a cavity between the moulds. The flanges (19) are located above the tray surface (22) so that air may circulate through holes (23) thus assisting in the delivery of heat to the male mould members (18). The hollow male mould members (18) at least are made from a thick wall mould material made of high heat conveying. In the illustrated embodiment that mould material is cast aluminium AO alloy of a thickness of about 4mm. The mould is closed and the dough proved blind using a separate visual or timed proving technique, the blind proving is required due to the need to bake closed so that the desirable soft chewy surface may be accomplished by moisture retention.
