Question: how long to cook a semi frozen whole chicken?
Answer: Essentially, simmering and roasting (or baking). The general guideline you need to know is that it will take around 50 percent longer than if you're starting with a chicken that is fully thawed. Thus, if a 5-pound chicken would normally take 1 1/2 hours to roast, a frozen one would take at least 2 hours and 15 minutes.