1. In a large sauté pan, brown the onion in a drizzle of white truffle oil, then add the rice until translucent.
2. Add the broth to the rice in small doses until completely absorbed.
3. At the end of cooking, mix the porcini mushroom and white truffle cream with the rice.
4. Serve on the plate. Sprinkle with salted truffle powder, parmesan shavings and a twist of pepper mill.