A cooking system includes a housing having a hollow interior and food is receivable within said hollow interior. A heating element is associated with the housing and a support body supports food within the hollow interior. The support body includes a body having a plurality of diffuser ribs. A plurality of channels is formed between the plurality of diffuser rib and at least one of the plurality of diffuser ribs and the plurality of channels is operable to deflect a relatively downward flowing fluid relatively horizontally across said support body.