The recipe is simple. The main flavoring ingredient is mushroom soy sauce, with large amounts of chopped fresh garlic and freshly ground black pepper. You can get the mushroom soy sauce at an Asian specialty market, or you can use a good grocery store brand such as Kikkoman. It is worth firing up your grill to cook these wings. I live in a northern state, and we grill outside all year around. I think that makes them even more enjoyable in the middle of a cold winter.