Preheat oven to 450 degrees. Line a baking dish with aluminum foil and lightly coat with cooking spray. Set aside.
In small nonstick pan, add oil and garlic. Sauté garlic until tender about 1-2 minutes. Remove from heat and stir in brown sugar and water.
Place chicken breasts in the foiled lined baking dish. Cover with garlic and brown sugar mixture. Sprinkle with a little salt and pepper, to taste. At this point, you can place in refrigerator and store until ready to bake. If you store in refrigerator, it might take a little longer for the baking time.
Bake, uncovered, for 15-20 minutes until chicken is completely cooked. Cooking time will depend on the size and thickness of the chicken. Be sure to check for doneness after 15 minutes.
To serve: Plate each breast and spoon a little sauce over each.