Ingredients
2 tablespoons cumin seed
1 tablespoon fennel seed
1 tablespoon mustard seed
1 tablespoon onion powder
1 tablespoon dried Mexican oregano or marjoram
1 tablespoon salt
1/3 cup chili powder
2 tablespoons cocoa
½ tablespoon ground black pepper
1 (16-ounce) pork tenderloin
2. Toast cumin, fennel and mustard seeds in a dry cast-iron skillet until they begin to smoke, about 5 minutes.
3. Combine seeds and remaining ingredients (except pork), in a spice grinder, mortar and pestle, or food processor. Grind to a powder.
4. Coat pork with spice mixture. Refrigerate at least 30 minutes.
5. Prepare charcoal grill. When coals have turned amber and become ashy on the outside, push them to one side. Remove hardwood chips from water and pile them on top of coals. Position grate on grill and heat until chips begin to smoke, about 10 minutes.
6. Sear tenderloin over coals on each side 3 minutes, then move to the side of grill with no coals, cover grill, and cook 5 to 10 minutes. Let rest 5 minutes before slicing. Serves 4.
Recipe courtesy of Aaron Sanchez, Relish Who You Know, "Fire and Spice," July 2008.

