The Cobb Cooker rendered these chicken breasts moist and tender after 20 minutes on each side.

Last year, some South Africans invaded Naples, FL, and established a beachhead they called Earthfire USA. Earthfire—a small marketing company—then proceeded to promote its first product, something called a "Cobb Cooker," which was invented for cooking with corn cobs in remote areas of South Africa. Corn cobs?—"Cobb" cooker—right.

You may have heard of spherical cookers like this via their exaggerated claims, like they'll do a 10-pound salmon over a fire made with three sheets of toilet paper. Despite that hyperbole, they are supposed to be extremely efficient, safe, healthy, easy to clean up (dump in some soapy water while you're eating), and "eco-friendly," because the smoke and ashes don’t blow all…