Sprinkle pork with 1/4 teaspoon salt, pepper, and poultry seasoning. Heat 1 teaspoon oil in a Dutch oven over medium-high heat. Add pork; cook 3 to 4 minutes until browned on all sides. Remove pork from pan.
Reduce heat to medium; add remaining 1 teaspoon oil. Add onion and garlic; sauté 2 minutes or just until tender. Add apple and next 3 ingredients; bring to a boil. Return pork and juices to pan. Cover, reduce heat, and simmer 50 minutes or until pork is done, turning after 25 minutes.
Remove pork from pan; cover and keep warm. Stir remaining 1/4 teaspoon salt and sage into sauce. Bring to a boil; cook 5 minutes or until slightly reduced. Slice pork, and serve with sauce.