Cook rice according to package instructions so it is ready and hot when the étouffée is finished. For 4 cups cooked rice, use about 1 2/3 cups uncooked Jasmine or long-grain rice and 3 cups water (adjust for your rice type).

Prep crawfish and aromatics

If using live crawfish, purge and cook per safe handling instructions and remove tails; if using frozen tails, thaw in the refrigerator or a cold-water bath and drain. Finely dice onion, bell pepper, and celery (the 'holy trinity' of Creole cooking). Mince garlic, chop parsley, and slice green onions.

Make a blond roux

In a large heavy skillet or Dutch oven over medium heat, melt 2 tablespoons butter with 1 tablespoon oil (oil helps prevent burning). Add 4 tablespoons flour and whisk constantly to make a blond roux. Continue cooking for 3–5 minutes, stirring often, until the roux is a light golden color and loses the raw flour smell. Do not let it brown too much — for a tomato-based étouffée, a blond roux gives body without a deep brown flavor.

Sweat aromatics

Add the diced onion, bell pepper, and celery to the roux. Reduce heat to medium-low and cook 6–8 minutes, stirring occasionally, until the vegetables are softened and translucent. Add the minced garlic and cook 30–45 seconds until fragrant.

Build the tomato base

Stir in 2 tablespoons tomato paste and cook 1–2 minutes to remove the raw tomato taste. Add the canned diced tomatoes with their juices and stir to combine. Slowly pour in 1 1/2 cups stock while stirring to incorporate and smooth any lumps. Increase heat to medium to bring the mixture to a gentle simmer.

Season and simmer

Add Worcestershire sauce, 1 tablespoon Creole seasoning, bay leaf, thyme, hot sauce, optional sugar, salt, and black pepper. Taste and adjust seasoning carefully — crawfish can be salty. Simmer gently, uncovered, for 10 minutes to let flavors meld and the sauce reduce slightly. If the sauce becomes too thick, add up to 1/4 cup more stock or water to reach desired consistency (it should be saucy but not watery).

Finish with crawfish

Stir in the crawfish tails and the remaining 2 tablespoons butter. Cook for 3–5 minutes, just until the crawfish are heated through and opaque. Do not overcook, as crawfish become rubbery. Remove and discard the bay leaf.

Adjust final seasoning and garnish

Taste and adjust with additional Creole seasoning, salt, pepper, or hot sauce as needed. Stir in chopped parsley and half of the sliced green onions. Reserve remaining green onions for garnish.

Serve

Spoon steamed white rice into shallow bowls and ladle the crawfish étouffée over the rice. Garnish with the remaining sliced green onions and an extra sprinkle of parsley. Serve immediately with crusty French bread if desired.