Combine the flour, sugar, baking powder and cinnamon in a large bowl, and mix well. Add the eggs and about a third of the milk, and whisk until smooth. Add the remaining milk, and whisk again until smooth. Next add the melted butter and the granola, and mix to combine.
Heat a non-stick frying pan over a medium heat, and grease it lightly with butter. Add a ladleful of the pancake mixture, and cook for a couple of minutes, until the underside is golden brown. Flip the pancake, and cook for one more minute, or until cooked to your liking.
Remove the pancake from the pan, and repeat with the remaining mixture (you may need to add a tiny bit more butter to the pan each time).
Serve the pancakes topped with more granola and plenty of maple syrup.