Gumbo Z'herbes

Ingredients

• 10 oz baby spinach 
• 0.5 lb bunchs of kale (from 1 bunch beets; including stems)
• 1 small pepper flakes fresh red hot minced (2 to 3 inches long)
• 3 tablespoons apple cider vinegar for serving
• 2 tablespoons flour all-purpose
• 0.3 cup parsley fresh finely chopped
• 1 tablespoon thyme dried fresh
• 2  garlic clove minced
• 8 servings hot sauce 
• 1 lb mustard greens 
• 8 large cabbage leaves (from 1 large head)
• 2 medium onion finely chopped
• 1 teaspoon salt to taste
• 2 lb pork hock smoked
• 0.8 lb turnip greens 
• 2 tablespoons butter unsalted

Equipment

• bowl
• pot
• tongs
• colander
• cutting board

Directions

1. Bring 2 quarts of water to a boil in a 6- to 8-quart wide heavy pot.
2. Add cabbage and simmer, covered, until tender, about 10 minutes.
3. Transfer cabbage with tongs to a colander reserving cooking liquid, then add half of mustard, turnip, and beet greens to cooking liquid. Simmer uncovered, 5 minutes.
4. Transfer greens with tongs to colander with cabbage, then cook remaining greens in same manner and transfer to colander. When greens are cool enough to handle, finely chop.
5. Add ham hocks to cooking liquid (liquid will not cover them completely) and simmer, covered, 1 hour.
6. Transfer with tongs to a cutting board to cool.
7. Transfer ham broth to a bowl, adding water if necessary to measure 5 cups liquid. Discard skin, bones, and fat and finely chop ham.
8. Cook onions and garlic in butter in pot over moderate heat, stirring frequently, until golden, about 5 minutes.
9. Add flour and cook, stirring, 3 minutes.
10. Add ham broth in a slow stream, stirring constantly.
11. Add chopped greens, ham, thyme, and minced chile and simmer, uncovered, until greens are tender, about 8 minutes.
12. Gradually add spinach, stirring until wilted. Stir in parsley, vinegar, and salt.
13. Serve with hot sauce and additional vinegar if desired.
14. Gumbo (without spinach, parsley, vinegar, and salt) can be made 2 days ahead. Cool, uncovered, then chill, covered. Reheat before adding remaining ingredients.