Porcini mushrooms are a famous, and delicious, addition in Italian cuisine. Due to their strong nutty flavor, this is an incredibly popular gourmet mushroom.
Like so many other good edible mushrooms, porcini are mycorrhizal. This means that the underground vegetative growth of the mushroom, called the mycelia, enters into a symbiotic relationship with the roots of plants.
Why would you care as a chef? It means that because of this complex relationship that occurs in nature, porcini aren’t easily cultivated. So depending on where you live they could be hard to find fresh and more expensive to purchase.