Although this step is optional, I highly recommend it because it really makes the turkey moist. There's nothing like slathering something with butter to make it moist, eh? But it's really important when it comes to turkey, because oftentimes the turkey breast can be done before the thigh, and if the breast gets overcooked, the turkey will taste dry.
Okay, so to make the compound butter, just cut the softened butter into 1/2-inch chunks and put it in a small bowl.
