Étouffée

Étouffée is a dish of shellfish, simmered in a sauce made from a light or blond roux, served over rice. It is most commonly made with shellfish, such as crab or shrimp. The most popular version of the dish is made with crawfish. Depending on who is making it and where it is being made it is flavored with either Creole or Cajun seasonings. Although Creole and Cajun cuisines are distinct, there are many similarities]

In the case of the Creole version of crawfish étouffée, it is made with a blond or brown roux and sometimes tomatoes are added. A blond roux is one that is cooked, stirring constantly, for approximately 5 minutes to remove the "raw" flavor of the flour and to add a slightly "nutty" flavor, while a brown roux is cooked longer (30 to 35 minutes) in order to deepen the color and flavor

The dish is very popular in New Orleans and in the Acadiana area of the southernmost half of Louisiana but also in the coastal counties of Mississippi, Alabama, at the regions  northern Florida, and eastern Texas.