Mix up eggs, a little salt, milk, flour, and dump it into the pan with hot beef drippings from your Prime Rib and bake...either you love it or hate it. 
Wikipedia will give you the info on how the English love their puddings and this isn't REALLY a Yorkshire pudding unless it is 4 inches tall.  But I've enjoyed it although I didn't know any of that!  At some point our parents started making this with Prime Rib and that became the meal to have. (I think Mom just couldn't take one more turkey.)

In any case, the Yorkshire Pudding, Prime Rib, Twice Baked Potatoes, Caser Salad, Creamed Spinach and buttered Peas are our special meal.  As with many of us the anticipation of the meal is easily as enjoyable as the meal itself.  Having said that - we're all pretty stuffed afterward and fall asleep on the couch watching The Christmas Carol afterward - yet, another tradition! 

Merry Christmas everyone!