Cooking device and components thereof

A cooking system, comprising:

• a housing having a hollow interior configured to receive food therein;
• a heating element associated with the housing;
• and
• a support body configured to support food within the hollow interior, the support body including a center opening therein and a support surface and an outer edge, wherein the support surface includes a plurality of diffuser ribs, the plurality of diffuser ribs including first ribs, second ribs, and third ribs, the first ribs extending radially inward between the outer edge to a first radial position on the support surface, the second ribs extending radially inward between the outer edge to a second radial position, and the third ribs extending radially inward between the outer edge to a third radial position, the first, second, and third radial positions being different from one another.