Baking frames are made from stainless steel. They can measure 20–50 cm in length and 15–35 cm in width, with a variable height of 4–7 cm. The largest models are suited to professional ovens. There are also expandable frames with the same dimensions as above, and which can be made larger or smaller depending on the amount to prepare. Some of these frames also come with a detachable separator that lets you bake two different preparations in the same mold.
Place the baking frame on a baking sheet (tray) and pour the preparation into it.