Pork Tenderloin with Grilled Peaches and Red Onions

Name: Pork Tenderloin with Grilled Peaches and Red Onions
Yield: Serves 4
Cuisine: US & Canada
Ingredients: 1 tablespoon, ground cumin; 1 tablespoon packed, brown sugar; 1 1/2 teaspoons, ground coriander; 1/2 teaspoon, cayenne pepper; 1/2 teaspoon, table salt; 24 - 32 ounces, pork tenderloins (2 loins, 12- to 16-ounces each), trimmed; 2 , peaches, halved and pitted; 2 small, red onions, quartered; 2 tablespoons, olive oil; 1 tablespoon, granulated sugar