There's no shortage of greens you can cook, but the Memphis BBQ Company goes for turnips. The vegetables grow wild in the Mississippi Delta, and the greens can be cooked just like collards. Cube up the turnip roots for a full side dish.
2 medium turnips, peeled and cut into ½-inch cubes (about 2 cups)(optional)
1 to 2 ham hocks
In a large pot or Dutch oven, combine the chicken stock and water; bring to a boil over high heat. Stir in the salt, pepper, and sugar. Add the greens and ham hocks, then bring the mixture back to a boil. Cover the pot and reduce to a simmer. Let cook until tender and the flavors have deepened, 1 ½ hours.