These baked (“al horno”) mushrooms are inspired by a Basque dish. The mushrooms kick out their water, which combines with the wine, garlic, vinegar, and herbs to make a very flavorful sauce. This dish is super straightforward (just mix some things together and throw them in your oven); my only advice: don’t soak the mushrooms in water to clean them or they’ll soak up too much liquid and ruin the rich, mushroomy sauce.