Abstract: An edible sideliner comprises a sheet of bakeable edible substrate formed into a continuous loop, the bakeable edible substrate having sufficient integrity to be freestanding when formed into a continuous loop so as to receive a bakeable substance within an area bounded by the continuous loop, the bakeable edible substrate being suitable to be baked onto a bakeable substance received within the area bounded by the continuous loop that is baked together with the bakeable edible substrate to formed a baked substance, wherein the bakeable edible substrate forms a baked-on sidewall of the baked substance after the bakeable substance is baked together with the bakeable edible substrate. The sideline may be an interlocking sideline form from a flat sheet of edible substrate.