Cut the bread into medium-sized cubes.
Peel and chop the apples.
Cook the apples briefly with butter, cinnamon, and a little brown sugar.
Arrange the bread cubes in a baking dish.
Spread the cooked apples over the bread.
Whisk eggs, milk, vanilla, nutmeg, and remaining sugar.
Pour the mixture evenly over the bread.
Allow the bread to absorb the liquid for several minutes.
Bake until golden and firm in the center.
Serve warm with maple syrup.