Abstract: A cooking appliance including a cooktop having a cooktop surface and a griddle system including at least one cooking grate positioned on the cooktop surface, the at least one cooking grate including at least one griddle support protruding therefrom, and a griddle configured to removably engage the at least one griddle support, the at least one griddle support being configured to support the griddle away from the cooktop surface, and/or an oven cavity defined by top, bottom, front, rear, and lateral sides and a broil system including a diffuser disposed adjacent the top side of the oven cavity, a single tube broil element disposed between the diffuser and the top side of the oven cavity, and the diffuser being configured to diffuse heat emitted from the single tube broil element to form a substantially even temperature gradient proximate the top side of the oven cavity.