Mix the flour, 2 eggs and olive oil. Knead the dough for 20 minutes. Then roll out very thinly and cut into squares. Mix the parmesan, pecorino, egg, truffle oil and salt. Spread on the squares as a filling.
Fold the squares together (to make ravioli) and press the edge with a fork. Put the pasta in boiling water and cook. The noodles are done when they swim upstairs (if you want, you can wait a while).
To serve, place the pasta in plates, drizzle with a little melted butter and sprinkle with parmesan.