[Am typing this with head bowed in shame ...]
One of my all-time favorite dead-easy meals is a roasted (boneless center-cut) pork loin: 21 minutes per pound for a gorgeously moist beast. In the stores around here, I can count on the loins weighing around 1 kg (i.e., 2 pounds). Perfect for a 4-person meal, but what happens if I want to feed 6, and I purchase 2 of the loins and roast them side-by-side?
Cookbooks all give roasting time by weight, but does that hold true for two discrete pieces?
I'm totally blanking on this: do I roast them for 21 minutes per pound times 4 pounds, or do I assume that each separate morsel will cook in the same time, and give them only 21 minutes per pound times 2 pounds?
I'm feeling woozy -- this is reminding me too much of third-grade story problems. And no, I have no idea how fast the second train is going!