Preheat the oven to 375. Cut three of the pieces of bread in half.

Spray a muffin tin well with nonstick cooking spray.

In a shallow bowl, whisk together the eggs, milk and cinnamon.

Soak 6 of the pieces of bread in the custard and press into muffin tin wells. Soak the half pieces and fit them inside the bread slices you pressed in already.

Sprinkle each the tops with 1 T brown sugar and a generous dusting of cinnamon sugar. Cover the pan with aluminum foil and bake for 20 minutes.

Uncover the pan and bake for an additional 10 minutes.

Optional: drizzle with maple syrup and/or dust with powdered sugar.