Whisk together the eggs, milk, sugar, vanilla extract, and cinnamon in a large bowl.
Slice the stale bread into thick pieces, about 1 inch each.
Preheat a non-stick skillet over medium heat and add butter.
Soak each slice of bread in the egg mixture for a few seconds on each side.
Place the soaked bread slices in the hot skillet.
Cook for about 3-4 minutes on each side until golden brown.
Transfer the cooked slices to a plate and keep warm.
Serve warm, drizzled with maple syrup.
Garnish with fresh berries.