Mum always made Yorkshire pudding with roast beef. It's best with Prime Rib and is perfect for soaking up the great Au Jus that the roast renders. Or just pour gravy over them. It's a super easy and delicious British treat!!
Gordon Ramsay's Yorkshire Pudding - this recipe worked really well for me. It rose like crazy baked in a cast iron skillet. It's a good day when your pudding puffs! (I divide one recipe between two or three 10" skillets.)