Craving wild mushrooms? I give them a boost of wild flavor in a couple of ways. The first is to make an intense, flavorful broth with a handful of dried porcini. The other is to actually buy some wild mushrooms. A scant half-pound of chanterelles, even if pricey, won’t break the bank. The rest of the rustic stew (call it a ragout if you wish) is made of shiitake, cremini and oyster mushrooms.