The invention concerns a mould for a food product, comprising at least one shell (302a, 302b) having a marking zone consisting of a plurality of ribs (402, 406) intersecting one another, said mould being characterized in that each rib (402, 406) has an edge (404, 408) having a sharp ridge oriented towards the inside of the mould in order to mark the food product during preparation thereof in said mould and in that said or each shell (302a, 302b) has, at the ends thereof, a recess (314, 414) intended to form, with the recesses (314, 414) of the other shells constituting the mould, a hollow (312, 412) that extends from the inside of the mould and in the direction of the outside of the mould.