01 - Set the oven to 350°F to ensure optimal baking temperature.
02 - Wash and core each apple, keeping the bottom intact to create a cavity for the filling.
03 - In a mixing bowl, thoroughly blend brown sugar, walnuts, raisins, cinnamon, nutmeg, and vanilla extract.
04 - Stuff each prepared apple with the filling mixture, pressing down gently to compact.
05 - Place the stuffed apples upright in a baking dish, then pour apple juice or water around them.
06 - Place a piece of butter atop each filled apple to enhance moisture and flavor during baking.
07 - Bake for 30 minutes or until apples are tender yet maintain their shape.
08 - Serve warm; optionally accompany with vanilla ice cream or whipped cream.