Method

1. Blend the flour and egg and salt in a food processor to make a dough.
2. Roll out on a floured surface until thin enough to go through a pasta machine.
3. Pass through the machine 5-6 times, folding each time.
4. Now make the rollers a bit thinner and pass through the pasta.
5. Repeat this until on the thinnest setting.
6. Pass the pasta through the spaghetti cutting roller.
7. Blanch the spaghetti in boiling water for 3-4 minutes until tender.
8. Drain and season.
9. To make the sauce, sauté the mushrooms and garlic in the butter for 3-4 minutes.
10. Add all the other sauce ingredients and simmer for 3-4 minutes.
11. Put the mushroom sauce in a bowl and serve the pasta on top.
12. Top with parmesan shavings, slices of truffle and parsley.