STOCK RECIPE: Peel shrimp and combine peels, onion skins, ends. Cover with water and boil for 10 minutes. Strain and reserve water. Fry okra in hot oil until lightly browned and reserve. Make a dark rouz with flour and oil, cooking until it achieves the color of milk chocolate. Add onions, stirring together until roux darkens further to dark chocolate brown. Add celery and bell pepper. Saute for five minutes, then add crab, tomatoes, okra, herbs and shrimp stock. Add garlic and salt and pepper to taste. Simmer for 45 minutes or a bit longer. 10 minutes before serving add in chopped green onions and shrimp.