Louisiana Seafood Gumbo
["2 Tbsp. flour", "2 Tbsp. shortening", "4 onions, chopped", "6 stalks celery, chopped", "1 bay leaf", "2 cloves garlic, chopped", "pinch of thyme", "2 lb. shrimp, deveined", "1 pt. oysters and liquid", "2 c. crabmeat", "3 cans tomato sauce", "cooked rice (optional)"]
["Brown flour in hot shortening in a Dutch oven, stirring until smooth.", "Combine all", "ingredients and let simmer.", "Serve over cooked rice."]
["flour", "shortening", "onions", "stalks celery", "bay leaf", "garlic", "thyme", "shrimp", "oysters", "crabmeat", "tomato sauce", "rice"]