Lightly grease a cake pan. Cut cinnamon raisin bread into about 1 inch pieces and add to the bowl.
Whisk together milk, eggs and maple syrup.
Pour over the bread pieces, pressing down gently so the bread soaks the custard.
Let is rest for 5 mins. This allows the bread to soak up the custard and adds to the gooey texture.
Cover in foil and bake at 375F for 35-40 mins, or till cooked through. Carefully remove from the oven.
Optional: Broil with butter and brown sugar, then top with warmed maple syrup!