Ingredient:

• cooking spray
• ¼ cup Dijon mustard
• ⅓ cup brown sugar
• ⅓ cup all-purpose flour
• 3 pounds pork loin, cut into 1-inch cubes
• 3 tablespoons olive oil
• 1 sweet onion, chopped
• 2 cloves garlic, minced
• 1 ⅓ cups chicken broth
• 1 cup dry sherry
• 3 pounds sweet potatoes, cut into 1-inch cubes
• ¼ teaspoon ground black pepper
• ¼ teaspoon crushed dried rosemary
• ¼ teaspoon thyme
• salt to taste