Boil a large volume of water with salt in a saucepan to cook your pasta.
At the same time, prepare your sauce. Grate 10 g of truffle into the cream and with a knob of butter. Infuse over low heat while your pasta cooks.
Drain your pasta, arrange it on plates and pour over the truffle cream, salt and pepper. Finally, grate the remaining 10 grams of truffles over your pasta and enjoy immediately.