This is a traditional part of our Christmas day dinner that has been wishy washy since my Grandmother died. I have only one 6 serving popover pan, so when I found this recipe at marthastewart.com, I was thrilled. My mother's recipe calls for putting the Yorkshires into a cold oven which is an impossibility so another thumbs up for this recipe. **It DOES call for resting/chilling for 4 hours - overnight, which is not included in the prep/cook time**. I just mixed it up in the morning. It wasn't fussy about cooktime - I started at the lower end of the recommended cooktime and checked it every 5 minutes. It just kept getting bigger & bigger!!! I cooked it for a total of 35 minutes. When it came out of the oven, Mom said it looked just like my Grandmother's. The ULTIMATE compliment. And my FIL wants a copy of the recipe. I also used a 9x13" pan so I could use the roasting pan for gravy. I had the leftovers for breakfast with a bowl of gravy. Yup, no kidding. Enjoy!