Preheat your oven to 325°F. Line a muffin tray with liners.
In one bowl, whisk together the eggs and nutella until smooth. Add in the flour (you may also add 1/4 tsp salt at this point) and mix until combined and glossy smooth. Bake for 12-15 minutes. Allow to cool in the muffin tray for 15 minutes prior to removing them to a cooling rack. Sprinkle with flakey sea salt and enjoy!