Frittata al tartufo is a traditional Umbrian and Istrian dish made with a combination of eggs, black truffles, olive oil, salt, and black pepper. This simple dish is made by pouring beaten eggs into a pan with hot olive oil, and then adding thin shavings of truffles, salt, and pepper to the pan.
After the eggs have curdled, all that's left is to sprinkle the dish with finely chopped parsley or dry white wine before serving. If desired, the dish can be additionally flavored with grated cheese on top. In Istria, the dish is called fritaja s tartufima - it's commonly prepared for breakfast and it can easily be found in local restaurants.
However, one should be careful when ordering the dish - there is a chance you won't taste real truffles, but truffle oil or tartufata instead - both of those are flavored with a toxic gas that has a fake truffle aroma, while the inexpensive and bland black summer truffles are shaved over the dish only as garnishes, although consumers might think that's where the flavor of truffles in this dish comes from.