Cook bacon strips in a dutch oven until crisp. Remove the bacon to a paper towel lined plate and set aside.
Add the onions, celery and bell peppers to the bacon drippings and cook over medium heat until vegetables are softened.
Meanwhile in another heavy pan or cast iron skillet, make the roux. Combine vegetable oil and flour. Cook over medium heat, whisking constantly until roux is a dark peanut butter to rich chocolate color.
Whisk in the chicken broth, mixing together.
Pour the chicken broth and roux into the dutch oven with the vegetables.
In a bowl, combine garlic, onion flakes, smoked paprika, black pepper, thyme, oregano, basil, salt and dry mustard. Mix in the brown sugar. Add to the gumbo.
Continue to cook, whisking often, bringing it to a boil. When the broth is thickened, stir in the chicken, sausage, okra and crumbled bacon. Stir in the hot sauce.
Lower to simmer and cook for 10 - 15 minutes or until ready to serve.
To serve, spoon rice into a bowl and top with gumbo.