Abstract: The cooking apparatus has a reflector shaped to concentrate the sun's rays and direct them onto a cooking vessel. The reflector is formed of at least two panels, each of which has a surface contour which interfits the other when they are folded together face-to-face. Suitable supports position the reflector panels with respect to the sun angle. A target arm holds the cooking vessel at the focal point for receiving the sun's concentrated rays. The cooking vessel may be a jar or a double-sided interfitting grill.