Nm just seen the per lb duuuuhhh. Haha..

Per pound. Please reread the steps in recipe card and do the math and you will understand.

You add veggies to remaining drippings in the same pot and cook them.

Are we adding veggies to the removed 1 cup of drippings or to the remaining drippings?

So nice of you to say, so happy your husband loved it! We make it for Christmas some years too! Thank you for the rating!

Lamb has to rest for 15 minutes, so it will be sitting only for 20 minutes while vegetables are cooking. I remember it was fine when I tested it this way. You can always pre-roast the veggies before roasting the lamb, then mix veggies with drippings and you will have to roast them just for 15 minutes while lamb rests. A bit more work but gives you desired results.

so the lamb will sit out while the veggies cook? Won’t it cool down if it sits out 35 minutes?

Technically you can but result will be very-very different. It will be very well done meat with a lot of fat and juices drained from it. It does not appeal to me but you can try. I would sear it and cook on low for 10 hours.