Ingredient:

• 1/2 cup chopped onion
• 2 tablespoons canola oil
• 4 boneless skinless chicken breast halves (4 ounces each)
• 1 can (12 ounces) cola
• 1 cup ketchup
• 1/8 teaspoon garlic powder
• 1/8 teaspoon salt
• 1/8 teaspoon pepper
• 4-1/2 teaspoons cornstarch
• 3 tablespoons cold water