Polenta Funghi
The dish in context
Polenta ai funghi belongs to the maize-and-mountain cooking of northern Italy, especially the Alpine and pre-Alpine regions where polenta functions as a starch base rather than a side garnish. Porcini are the benchmark mushroom when available, but Italian home versions often use mixed cultivated mushrooms reinforced with dried porcini and their soaking liquid. Older preparations commonly set the polenta on a board, cut it into slabs, and spoon the mushroom sauce over it; modern restaurant versions often serve it soft and creamy. Both formats are legitimate. The dish lives or dies on the contrast between clean corn sweetness and concentrated mushroom juices.
Method 8 steps · 60 min
Soak and strain the porcini
Cover the dried porcini with 250 ml hot water and soak for 20 minutes. Lift the mushrooms out, chop them, and strain the soaking liquid through a coffee filter or fine cloth; stop pouring before the gritty sediment at the bottom.
Start the polenta
Bring 1 litre water to a boil in a heavy pot with 8 g of the salt. Rain in the polenta slowly while whisking constantly, then reduce the heat until it bubbles thickly rather than spits violently.
Cook the polenta until the grit disappears
Cook the polenta 35-45 minutes, stirring every few minutes with a wooden spoon and scraping the corners of the pot. Add small splashes of hot water if it stiffens before the grains are tender; finished polenta pulls from the sides but still moves like thick lava.
Drive off the mushroom water
Heat 30 ml olive oil in a wide sauté pan over medium-high heat. Add the fresh mushrooms with a pinch of salt and cook until they release liquid, the liquid evaporates, and the edges start to brown, 10-14 minutes.
Build the ragù base
Lower the heat to medium. Add the remaining 15 ml olive oil, onion, garlic, chopped soaked porcini, and 2 g salt; cook until the onion is translucent and the garlic smells sweet, 5-7 minutes.
Deglaze and reduce
Add the white wine and scrape the pan until the browned mushroom film dissolves. Add the strained porcini liquid and simmer until the sauce is glossy and spoonable, not watery, 8-10 minutes.
Finish the polenta
Off heat, stir 35 g butter and the Parmigiano-Reggiano into the polenta until smooth. For soft service, keep it loose with a splash of hot water; for slabs, spread it 2 cm thick on an oiled board and let it set for 10 minutes before cutting.
Finish the mushrooms and serve
Remove the garlic cloves if left whole. Stir the remaining 15 g butter, parsley, and black pepper into the mushroom ragù, then spoon it over the hot polenta.
Common mistakes
- {'mistake': 'Adding the polenta in one dump.', 'fix': 'Rain it into boiling salted water while whisking. Lumps form in seconds and never fully disappear.'}
- {'mistake': 'Stopping the polenta when it thickens.', 'fix': 'Thickness is not doneness. Cook until the grains no longer feel sandy between the teeth.'}
- {'mistake': 'Crowding mushrooms in a narrow pan.', 'fix': 'Use a wide pan or cook in batches. Mushrooms need evaporation before browning.'}
- {'mistake': 'Pouring porcini soaking liquid straight into the sauce.', 'fix': 'Strain it and leave the sediment behind. Dried mushrooms often carry fine grit.'}
- {'mistake': 'Turning the ragù into cream sauce.', 'fix': 'Reduce the mushroom juices until glossy. Cream blunts the porcini and changes the dish.'}
What does not belong
- {'item': 'Heavy cream', 'reason': 'Cream does not belong in the mushroom ragù. It softens the porcini aroma and turns a mountain dish into a generic mushroom sauce.'}
- {'item': 'Truffle oil', 'reason': 'Truffle oil does not belong. Its synthetic perfume overwhelms the corn and makes the mushrooms taste artificial.'}
- {'item': 'Mozzarella', 'reason': 'Mozzarella does not belong in the polenta here. It stretches and dulls the texture instead of enriching it.'}
- {'item': 'Chicken stock as the main polenta liquid', 'reason': 'Stock is not needed. Water lets the corn taste like corn, and the mushroom ragù supplies the savory depth.'}
- {'item': 'Dried parsley', 'reason': 'Dried parsley does not belong. It adds dusty green flecks without the fresh bite that balances mushrooms.'}
