I ain't never heard of anybody cooking gumbo in a crock pot, but I guess its possible. I do mine in a stock pot, or if I'm cooking for a bunch of people I'll use a big pot we usually boil crawfish in.
Chicken and Sausage Gumbo
1 chicken, cut into 8-10 serving pieces
1 lb smoked sausage, sliced
1
jar of roux
1 onion, diced
1 bunch green onions, diced
water
salt, black pepper, hot sauce, garlic powder to taste
steamed rice
Fill a stock pot about half full with water, and bring to a boil. Once its boiling, add your roux a little at a time, stirring so it dissolves. Add roux until you achieve the color you like, stirring constantly. I like mine a nice brown, kinda caramel looking. let it boil uncovered for at least an hour.
Next add your onions, chicken pieces, half the green onions, and sausage. You can fry down the sausage in a skillet, or add it raw and skim the grease off later. It doesn't matter. Season and cook until chicken is tender, almost falling off the bone.
Check your seasonings, adjust, then add the green onions just before serving over white rice.
Now I'm sure I'll get flack for using jarred roux, but its consistent and I like the flavor. Making my own roux just doesn't come out right for a gumbo. I save that for the etouffee.