For the Wild Mushroom Ragu: While the polenta is cooking, heat the extra virgin over medium-high in a large 12″ saute pan. Add clean, dry mushrooms to the pan. Cook until the mushrooms caramelize and become crusty golden-brown. Add the shallot, and saute for two minutes, add the garlic and saute for a minute. Add the wine and cook scraping up the browned bits from the bottom of the pan and reduced by half. Add the stock and cook until reduced by half. Taste and adjust with salt and fresh pepper if desired.