Spray slow cooker generously with cooking spray. Add torn challah bread pieces. Top with diced apple.
In a medium size bowl, mix together eggs, vanilla, honey, cinnamon, unsweetened applesauce, cream and milk. Pour the mixture over bread making sure all the pieces are wet. Gently pat down the wet bread mixture so the top is an even surface.
Cook HIGH 2-4, LOW 4-6 hours or until knife inserted in the center comes out clean.