Hawaiian Chicken

1 to 1.5 lbs. individually quick frozen chicken tenders 1-2 tsp garlic powder pepper to taste 1 onion, coarsely chopped 1/4 c butter 1/3 c ketchup 1/4 c brown sugar 2 tbsp cornstarch* 1/3 c vinegar 1 tsp soy sauce 1/2 tsp Worcestershire sauce 9 oz can crushed or chunks of pineapple Preheat oven to 350°F. Place chicken in baking dish, sprinkle with garlic powder and pepper. Cover with chopped onion. In sauce pan, melt butter. Stir in ketchup and brown sugar with a whisk. Mix cornstarch, vinegar, soy sauce, and Worcestershire sauce together, stir into saucepan. When smooth and starts to thicken, stir in pineapple. Pour sauce over chicken and place in oven. Bake for approximately one hour. Serve over white rice. * reduce cornstarch if using fresh chicken, the IQF chicken has a lot of extra water requiring additional thickening agents.