When it comes to cooking a stuffed turkey, there are a few things to keep in mind, like the fact that it's going to take longer to cook than an unstuffed turkey of the same size. This is because the stuffing adds extra bulk and can make it harder for heat to penetrate the meat. So, if you're used to cooking smaller turkeys, you'll need to adjust your expectations and your cooking time.
Now, let's talk about some numbers - a 21-pound stuffed turkey is going to take around 4-4 1/2 hours to cook in a 325°F oven. But, this can vary depending on a few factors, like the temperature of your oven and the thickness of the turkey. It's like trying to estimate how long it'll take to drive across the country - you need to consider the route, the traffic, and the speed limit.
