Slowly stir the flour into heated oil in a heavy cast iron skillet. Continue to stir until the flour is dark brown. Add the next 4 ingredients; stir until onions are clear. Add tomato paste and a cup of water. Add okra and tomatoes. Cook slowly, adding all the water and shrimp stock -a little at a time. Stir in sugar & creole seasoning. Cook for about an hour on a low fire, stirring occasionally to prevent sticking to the bottom of pot; adding water if necessary.
Add the shrimp ,sausage, parsley and the bay leaves. Cook another 30 minutes to an hour, adding seasoning to taste. Serve over boiled or steamed rice.