How to transform humble potatoes and mushrooms into a rich, umami-heavy ragu
Forget heavy creams and meat. By mastering the art of mushroom deglazing and utilizing the starch from boiled potatoes, you can create a velvety, restaurant-quality gnocchi dish that relies on deep, earthy flavors and simple pantry staples.
The secret to a truly deep mushroom ragu lies in the layered use of both fresh and dried fungi. Starting with a soak of 1 oz (2/28g) of dried mushrooms in hot water provides a concentrated essence that can be reintroduced to the sauce. For the fresh component, using about 1/2 lb (227g) of a shreddable variety, such as lion's mane, allows for a meaty texture. The cooking process begins by 'frying' the fresh mushrooms in a small amount of water to soften them, followed by oil to achieve a deep brown sear.
Building the sauce requires a classic technique of layering aromatics and deglazing. Once the mushrooms are browned, finely chopped shallots, carrots, and celery are added. The pan is then deglazed with wine or water to lift the flavorful mushroom fond from the bottom. Incorporating tomato paste, fresh tomatoes, and the finely chopped rehydrated mushrooms creates a complex base. Crucially, the starchy water from the boiling potatoes should be strained directly into this sauce, acting as a natural thickening agent.
The gnocchi themselves are a study in balance, requiring a volume of mealy potato flour roughly equal to the volume of the mashed, boiled potatoes. After kneading the dough into a flexible 'snake' shape, the pieces are dropped directly into the simmering ragu. As the gnocchi cook and plump, they naturally thicken the sauce further. To finish, a bright gremolata—made from minced garlic, lemon zest, and fresh herbs—is sprinkled over the hot dish to cut through the richness with much-needed acidity.
Source: Mushroom ragu with potato gnocchi
