Preheat the oven to 375°F (190°C).
Prepare the apples: Wash and core the apples, making sure to leave about 1/2 inch at the bottom to hold the filling. If you don't have an apple corer, use a knife and spoon to remove the core.
Mix the filling: In a mixing bowl, combine the brown sugar, rolled oats, chopped nuts, ground cinnamon, ground nutmeg, and dried fruit. Mix well.
Fill the apples: Spoon the filling mixture into the hollowed-out center of each apple, pressing it down gently to pack it in.
Add the butter: Drizzle the melted butter over the filled apples.
Prepare for baking: Place the apples in a baking dish and pour the apple juice or water into the bottom of the dish. This helps to keep the apples moist during baking.
Cover and bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 20 minutes. Then, remove the foil and bake for an additional 25 minutes, or until the apples are tender when pierced with a fork.
Serve: Let the baked apples cool for a few minutes before serving. They can be enjoyed as is or topped with a scoop of vanilla ice cream or a dollop of whipped cream for extra indulgence.