Preheat oven to 350F. Line a rimmed baking sheet with parchment paper.
Cut each slice of bread into into 4 sticks.
Add the eggs, milk, banana, vanilla, and cinnamon to a blender. Blend until smooth. (Or, skip the blender and mash everything together in a bowl.)
Dip each piece of bread into the batter, letting the excess drip off. Then place onto the prepared baking sheet.
Bake for 8 minutes. Flip over and bake for an additional 10 minutes, or until lightly golden brown and cooked through.
Serve warm with toppings or dips such as maple syrup, yogurt, nut butter, jam, or warmed frozen fruit.
