Abstract: A device for circulating heat along a side wall of: a cooking vessel, a cooking vessel comprises such device, and a method of using such device. The device can be constructed as part of the cooking vessel or can be an accessory that attaches to different sized cooking vessels via adjusting means. Specifically, the device comprises a skirt-like body extending from the side of the cooking vessel that directs heat to circulate along an underside of the body and over the side wall of the cooking vessel, thereby heating the side wall of the cooking vessel. The device can further comprise diffusers, a bottom portion with a plurality of openings, and a heat shield.