
Preheat the oven to 350°F. In a medium bowl, mix together the brown sugar, cinnamon, and pecans. Set aside.
Use a round teaspoon to scoop out the center of each apple, leaving ½ inch or more of the bottom. The well you create should be about 1 inch in diameter.
Fill each apple with the brown sugar mixture, and top each with 1 tablespoon of butter.
Place the apples in an 8—or 9-inch square baking dish and carefully pour the hot water into it.
Bake the apples for about 50 minutes. The apples should be softened and tender but not falling apart.