Apple-Stuffed Pork Chops

1 tablespoon butter
1/4 cup finely chopped onion
1 1/2 cups bread crumbs
3/4 cup peeled and diced tart apples
1 teaspoon poultry seasoning
1 1/2 teaspoons salt, divided
1/4 teaspoon ground black pepper, divided
1 egg, slightly beaten
1/4 cup water
6 rib pork chops, cut 1-inch thick with pocket
1 tablespoon vegetable oil
2 cups orange juice

Melt butter in small skillet; add onion and saut