Serve the egg over cooked noodles and stir-fried vegetables or with whatever you like. To make the 'nduja butter eggs, heat a small frying pan and, once hot, add the 'nduja and most of the butter ...

However, be careful not to make it too watery. Divide the noodles between two bowls and top each with a fried egg. Sprinkle over the sesame seeds before serving, if using.