The basic do’s: You want a wine that has some age to it (at least three years old) to compliment the truffle fragrance’s earthiness and complexity, ideally a bottle that is both subtle (to not overpower the mushrooms) and savory to complement them. Whether you opt for white, red, or sparkling, it mostly has to do with what else is on the plate.
What you do not want is something young (with too high acid), flimsy or fruity. In general, go for a medium-bodied wine that will not overwhelm the truffles yet stand up to them.
Though the terroir rule does not always have to apply, choosing something from Italy to a) match your truffles origin and b) because Italian wines are superb. And when you are splurging on something as unique and rare as a truffle, you want a fine wine to match!
If you are serving meat—or anything that would ordinarily be paired with red wine—a classic pairing for Italian truffles would be an aged Barolo or Barbaresco, from the Piedmont region, famous for its white truffles. Not only are they two of the most refined and impressive of Italy’s many fabulous reds, but they have the spice notes, medium-body, and earthiness that truffles require.
In the white department, try a slightly bolder, creamier Chardonnay. Though you might not think of Italy as a Chardonnay region, they have many excellent lightly oaked bottles that would be perfect for the job of pairing with black truffle risotto. Other great options: Piedmont whites such as Arneis or Timorasso, Alto Adige aromatic grapes like Pinot Bianco or Muller Thurgau, or Soave Classico from Veneto.
Lastly, a medium body sparkling wine would-be right-on cue for the occasion. Franciacorta is colloquially known as the “Champagne of Italy” because it’s produced using the same French methods. It is much richer than Prosecco, which would be too light for truffles, with a medium to full body. The creamy mouthfeel would be another option for a simple pasta, anything with a truffle bechamel.