...haven't had roast beef in ages, so though I'd treat my sister and her fiancé. I always make my own yorkshire puddings when I cook beef as they come out ENORMOUS. If you're still using Aunt Bessie's then try this super easy recipe. There's really no excuse not to!
1 cup plain flour
1 cup milk
vegetable or sunflower oil
Preheat the oven to 190°C. In a medium bowl beat the eggs with the milk. Stir in the flour until the mixture is combined and as lump free as you can get it. Now pour oil into the twelve cups of a muffin tray (about 1/3 of the way up). Put the tray in the oven for 5-8 minutes. You want the oil to be really hot, so that is sizzles when you add the batter. This is what causes them to rise! Remove the tray and, using a ladle, distribute the batter evenly among the cups. Place back in the oven for 20-25 minutes. Try not to open the door early on in the cooking or they may deflate!
Give it a go!