Cactus Pear Crisp

How do you “bake” a pie or a crisp when your “stove” is a campfire, grill, or fireplace? Our colonial forebears figured it out—they cooked the dessert in a Dutch oven—a large cast-iron kettle nestled in the embers. And they shoveled more embers in the depression in its heavy lid. (Invariably, some smoke from the fire wound up flavoring the dessert.) A few years ago, we were taping my Primal Grill TV show in the desert of southern Arizona. A few yards off the set was a cluster of cact