Method:

1. Put eggs and flour in a food processor and process until smooth. The mixture will look like breadcrumbs at this stage. Tip out onto a lightly floured board and bring together using your hands. Knead the dough until it’s no longer sticky. Cover and rest in the fridge while you make the filling and pesto.
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3. For the pesto, spread the hazelnuts on a baking tray and toast in the oven for 6–8 minutes, until golden brown, then set aside to cool.
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5. For the filling, mix the ricotta, parmesan, salmon, spinach, lemon zest, nutmeg and a pinch of salt and pepper until well combined. Transfer to a piping bag or a plastic food bag with the corner snipped off.
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7. To make the pesto, crush the hazelnuts in a pestle and mortar, then gently stir in the Parmesan and oils.
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9. To assemble the tortellini, roll the pasta dough through all the sizes on the pasta machine starting with the widest setting and finishing on the smallest setting when the pasta is very thin. Using a 9cm/3½in round cutter, cut out 10 circles. (Any leftover dough can be frozen to use another time.)
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11. Pipe a heaped teaspoon amount of filling inside each pasta circle and fold in half to create a half moon shape. Wet the edges and press down to help them stick. Pull the two narrow ends together to form a tortellini shape.
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13. Bring a large saucepan of salted water to the boil. Cook the pasta in the boiling water for 2–3 minutes, or until al dente. Drain well.
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15. Meanwhile, put a frying pan over a medium–high heat and add a knob of butter. Cook until lightly browned and starting to bubble. Then add the hazelnut pesto and gently heat through.
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17. Serve the tortellini with the pesto spooned over the top.