Whisk together milk, eggs, maple syrup, vanilla, cardamom and cinnamon
Spread bread cubes evenly in 13x9 pan, pour mixture on top
Cover and let sit in fridge overnight
Top with nuts/seeds if using or a sprinkle of cardamom and cinnamon
Bake at 350 for 40-45 minutes the next day
Allow to cool 5 minutes before slicing and serving
Can top with additional syrup or whipped cream