To get started with this dish you will want to get two post of water boiling and cook your chicken breasts in one and your sausage in the other. I usually boil my chicken breasts for 15-20 minutes until the juices run clear when cut into, then cube them. For the sausage, slice it into bite sized pieces and boil for 10 minutes. Set aside after cooking to use later with the gumbo.
The roux is the most important part of a gumbo. If you don't get the roux right, you are probably not going to like your gumbo. There are many recipes you can try for a roux, but this is probably going to be one of the best you have ever had if you are a true gumbo fan. Let's get start making the gumbo.
Over medium heat in a large pot, add your olive oil. Allow to warm for a minute, and then add in the flour. Stir constantly until all of the flour has disolved and the mixture has a lot of tiny bubbles. Once you have reached that consistency it's time to add in your garlic powder. Allow to bubble, constantly stirring for one minute.
Gradually stir in the chicken broth and the beer, stirring constantly until the mixture comes to a slow simmer. Add the celery, all tomatoes, onion, bell pepper, parsley, and cajun seasoning. Reduce heat to a slow simmer, cover, and continue to simmer for 40 minutes, stirring often.
Mix the chicken and sausage into the roux mixture, cover, and cook for an additional 20 minutes, stirring often. Add in the filé powder, stir well.
Once finished, serve over rice and with a side of french bread. So delicious!