Rotisserie style roast chicken

I don't know how I made it this far in life without ever cooking a whole chicken. Yesterday was my big debut. I found this recipe on allrecipes.com and it worked really well. Of course it would have all been better if I would have had a meat thermometer so I wouldn't have had to be paranoid that the chicken wasn't done. I think I overcooked it because I was so paranoid. Anyway, the spice rub was great and would be good on just plain old chicken breasts too!

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• 4 teaspoons salt
• 2 teaspoons paprika
• 1 teaspoon onion powder
• 1 teaspoon dried thyme
• 1 teaspoon white pepper
• 1/2 teaspoon cayenne pepper
• 1/2 teaspoon black pepper
• 1/2 teaspoon garlic powder
• 2 onions, quartered
• 2 (4 pound) whole chickens

DIRECTIONS

1. In a small bowl, mix together salt, paprika, onion powder, thyme, white pepper, black pepper, cayenne pepper, and garlic powder. Remove and discard giblets from chicken. Rinse chicken cavity, and pat dry with paper towel. Rub each chicken inside and out with spice mixture. Place 1 onion into the cavity of each chicken. Place chickens in a resealable bag or double wrap with plastic wrap. Refrigerate overnight, or at least 4 to 6 hours.
2. Preheat oven to 250 degrees F (120 degrees C).
3. Place chickens in a roasting pan. Bake uncovered for 5 hours, to a minimum internal temperature of 180 degrees F (85 degrees C). Let the chickens stand for 10 minutes before carving.