challah bread, cut into 1" cubes (about 12 c.)
large eggs
large egg yolks
(160 g.) light brown sugar, divided
heavy cream
whole milk
pure vanilla extract
ground cinnamon
plus 1/8 tsp. kosher salt, divided
unsalted butter, plus more for dish
Granny Smith apples (about 3 medium), peeled, cored, cut into 3/4" cubes
dark raisins
turbinado sugar (optional)