Preheat oven to 375°. In the bowl of a food processor, process
bread until coarse crumbs form. Transfer to a large baking sheet
and spread into an even layer. Toast until golden, 5 to 7 minutes.
When bread crumbs are toasted, transfer to a bowl and mix with
melted butter and granulated sugar.
Toss apples with lemon juice. In a separate medium bowl, stir to
combine brown sugar, cinnamon, and salt.
To assemble: Add half the apples to the bottom of a large baking
dish. Top with an even layer of 1/2 the brown sugar mixture and
and 1/2 the bread crumbs. Repeat, using remaining ingredients,
ending on bread crumbs.
Cover dish with foil and bake for 40 minutes. Remove foil and bake
until bread crumbs are golden and apples are tender, 8 to 10
minutes more. Serve hot with ice cream.