Huckleberry Crisp with Walnut Streusel Topping

Whether or not you know it, Michigan is blueberry capitol of the world. Huckleberries are very nearly identical to blueberries, but they're smaller and they have an "edge" which is missing in domestic berries. The flavor of wild huckleberries, as is true of many wild things, is more complicated and less obvious than the flavor of their tame cousins. Strictly speaking, this dessert should be cooled before serving. I say go for it piping hot right out of the oven. There's just something about the