Improvements in and relating to a cooking apparatus

A single-use container for storing and steaming food, the container comprising a first compartment for containing a steam source, and a second compartment for containing at least one food item, wherein the second compartment is disposed above the first compartment;

• wherein, the first compartment is separated from the second compartment by a partition and an adjustable barrier, the partition comprising a plurality of openings for admitting water vapour into the second compartment from the first compartment, and wherein the adjustable barrier is movable from
• (a) a food storing configuration in which the adjustable barrier prevents flow of at least one of (i) liquid and (ii) gas from the first compartment to the second compartment, to
• (b) a food steaming configuration in which water vapour is able to flow between the first and second compartments;
• wherein the adjustable barrier is a non-replaceable barrier movable from the food storing configuration to the food steaming configuration by removal of the non-replaceable barrier from the container;
• wherein the first compartment is located in a first vessel and the second compartment is located in a second vessel, the second vessel being at least partially insertable into the first vessel, and the first vessel being separable from the second vessel;
• wherein the second vessel comprises a base and at least one upstanding sidewall,
• wherein at least the base of the second vessel forms the partition between the first and second compartments so that the partition forms at least a base of the second compartment;
• wherein the sidewall of the first vessel is configured to surround at least a portion of the second vessel;
• and,
• wherein the container additionally comprises a lid, wherein the first vessel, the second vessel and the lid cooperate to entirely enclose the first container and the second container when the first and second vessels and the lid are assembled together.