Lay out your bread slices and cut the crusts off.
Spread Nutella on a bread slice and add another slice on top to make a sandwich. Repeat with the remaining bread slices.
Cut each sandwich lengthwise, into 3 thick pieces and set them aside.
In a shallow dish, add eggs, milk and vanilla and mix well.
In a separate shallow dish combine cinnamon and sugar, set aside.
Melt butter in a large pan over medium high heat.
Once the butter is melted, dip each stick in the egg mixture (don’t soak).
Place in the pan, and cook in batches until they're golden brown on each side.
Use tongs to transfer sticks in the cinnamon mixture and roll to coat all sides with the sweet mixture.
Serve immediately with Nutella, maple syrup or honey for dipping.