3 tablespoons butter
2 cups chopped onions
4 garlic cloves, minced
3 teaspoons grated orange peel
1 1/2 teaspoons dried sage leaves
5 1/2 teaspoons dried thyme
2 cups canned low-salt chicken broth
1 1/2 cups cranberry juice cocktail
2 cups fresh or frozen (unthawed) cranberries (about 8 ounces)
1/2 cup sugar
1/4 cup tawny Port
1 tablespoon cornstarch
1 1/2 teaspoons salt
1 1/2 teaspoons ground black pepper
3 1-pound pork tenderloins, excess fat trimmed
3 tablespoons vegetable oil