Louisiana After the Boil Crawfish Soup Recipe
Don’t let a great crawfish boil go to waste. This Louisiana After the Boil Soup transforms leftover crawfish, potatoes, corn, sausage, and seasoned boil broth into a rich, creamy soup packed with authentic Cajun flavor. It’s one of the best ways to enjoy the leftovers from a backyard crawfish boil, creating an entirely new meal that’s every bit as satisfying as the original feast.
Ingredients
For the Soup
- 4 tablespoons unsalted butter
- 1 small onion, diced
- 1 green bell pepper, diced
- 2 celery stalks, diced
- 4 cloves garlic, minced
- ¼ cup all-purpose flour
- 4 cups strained crawfish boil broth
- 2 cups chicken stock (or seafood stock)
- 1 cup heavy cream
- 1 cup whole milk
- 4 cups peeled leftover crawfish tails
- 4 cups leftover boiled potatoes, cut into bite-sized pieces
- 2 ears leftover corn, kernels cut from the cob
- 14 ounces leftover smoked sausage, sliced
- 2 cups quartered mushrooms (optional)
- 1 teaspoon Worcestershire sauce
- 2 green onions, sliced
- 2 tablespoons chopped parsley
- 1 cup chopped green onions
- Salt and black pepper, to taste
Instructions
- Strain the leftover crawfish boil broth through a fine mesh strainer to remove any spices or solids.
- Melt the butter in a large Dutch oven over medium heat.
- Add the onion, bell pepper, and celery. Cook for 6 to 8 minutes until softened.
- Stir in the garlic and cook for 30 seconds.
- Sprinkle in the flour and cook for 2 to 3 minutes, stirring constantly to form a light roux.
- Slowly whisk in the crawfish boil broth and chicken stock until smooth.
- Bring the soup to a gentle simmer and cook for 15 minutes.
- Stir in the potatoes, corn, and sausage. Simmer for another 10 minutes.
- Reduce the heat to low and stir in the heavy cream and milk.
- Fold in the crawfish tails and Worcestershire sauce. Simmer gently for 5 minutes, just until the crawfish are heated through. Do not boil.
- Stir in the green onions and parsley. Taste and adjust the seasoning if needed.
- Serve hot with warm French bread or crackers.
From the Parish Tips
- The leftover crawfish boil broth already contains plenty of seasoning, so always taste the soup before adding additional salt or spices.
- If your boil broth is very spicy, substitute part of it with additional chicken or seafood stock to mellow the heat.
- This recipe works equally well with leftover shrimp from a shrimp boil.
- Add extra crawfish tails just before serving for even more seafood flavor.
- Serve with warm French bread to soak up every spoonful.
Frequently Asked Questions
Can I freeze this soup?
Yes. For the best texture, freeze the soup before adding the cream. Stir in the cream after reheating.
How long will leftovers keep?
Store the soup in an airtight container in the refrigerator for up to 3 days.
Can I use shrimp instead of crawfish?
Absolutely. Leftover boiled shrimp make an excellent substitute or addition.
What if I don’t have enough boil broth?
Replace the missing broth with chicken stock or seafood stock while keeping some boil broth for its signature Louisiana flavor.
Can I add other leftover vegetables?
Yes. Mushrooms, onions, garlic, and even boiled garlic cloves from the crawfish boil all work well in this soup.
Explore More Louisiana Guides & Recipes
- Authentic Louisiana Crawfish Boil Recipe – Learn how to host the perfect crawfish boil.
- Crawfish Boil Calculator – Calculate seasoning, ingredients, and pot size for any crowd.
- Louisiana Crawfish Étouffée – Another classic way to enjoy crawfish tails.
- Louisiana Shrimp and Corn Soup – A creamy Cajun seafood favorite.
Final Thoughts
Louisiana After the Boil Soup proves that the best crawfish boil doesn’t end when the last crawfish is peeled. By turning leftover crawfish, potatoes, corn, sausage, and seasoned broth into a creamy, comforting soup, you’ll enjoy another authentic Louisiana meal while making the most of every ingredient.
