Cajun Chicken Spaghetti

1 pound butter or margarine divided
1/2 teaspoon garlic powder
6 cups chopped onion, divided
7 tablespoons Cajun seasonings, divided
5 cups water
2 1/2 tablespoons chicken base
4 tablespoons Worcestershire sauce
2 tablespoons Tabasco sauce or to taste
2 (15 ounce) cans tomato sauce
2 (12 ounce) cans tomato paste
4 tablespoons granulated sugar
10 chicken breast halves, skinned, de-boned
    and cut into bite-size pieces

Melt half the butter in a large heavy skillet. Add the garlic and 2 cups of the onion and saut? 5 minutes. Stir in 3 tablespoon of the Cajun seasonings and simmer 10 minutes.

Add the water, chicken base, Worcestershire sauce and Tabasco sauce and simmer 6 minutes.

Add the tomato sauce and tomato paste. Bring to a boil and add the sugar and 2 more cups of the onions. Reduce heat and simmer 40 minutes, stirring occasionally.

Coat chicken pieces with remaining Cajun seasonings. Melt remaining butter/margarine, add the rest of the onions and saut? 3 minutes. Add chicken and cook 10 minutes or until tender.

Stir chicken into sauce and serve over pasta (hot cooked spaghetti or linguine).