01 -
In a large pot over medium-low heat, melt the butter. Add the flour and whisk continuously until the mixture is smooth. Cook the roux, stirring constantly, until it reaches a deep brown color, approximately 30 to 40 minutes. Avoid burning.
02 -
Remove the pot from heat and continue to whisk until the roux slightly cools. Set aside.
03 -
While the roux cools, place chopped celery, onion, green bell pepper, and minced garlic in a food processor and pulse until finely chopped.
04 -
Add the chopped vegetable mixture to the roux. Stir to combine. Return the pot to medium-low heat and cook until the vegetables are softened, 8 to 12 minutes.
05 -
Gradually whisk in the beef broth and bring the mixture to a gentle boil, about 15 to 20 minutes.
06 -
Reduce heat to a simmer. Add the sliced andouille sausage, stewed tomatoes, tomato sauce, Tabasco, sugar, Cajun seasoning, dried thyme, and bay leaves. Stir to distribute evenly. Simmer uncovered for 45 minutes.
07 -
Stir in 2 teaspoons of gumbo filé powder and continue simmering for 15 minutes.
08 -
Remove the bay leaves. Add the shrimp and Worcestershire sauce. Simmer over low heat for 45 to 60 minutes to blend flavors.
09 -
Stir in the remaining gumbo filé powder just before serving.
10 -
Serve hot in bowls, accompanied by cooked white rice.