I am happy just to have the juices that drip from the meatloaf as it cooks as far as gravy goes, and not least because the whole point of this meatloaf for me is that I can count on a good half of it to eat cold in sandwiches for the rest of the week. (And you must be aware, it is my duty to make you aware, that a high-sided roasting tin makes for more juices than a shallow one.) But if you wanted to make enough gravy to cover the whole shebang hot, then either make an onion gravy and pour the meat juices in at the end or fashion a quick stovetop BBQ gravy. By that, I mean just get out a saucepan, put in it 1.76 ounces/50g dark muscovado sugar, 4.23 ounces/125ml beef stock, 4 tablespoons each of Dijon mustard, soy sauce, tomato paste or puree and redcurrant jelly and 1 tablespoon red wine vinegar, to taste. Warm and whisk and pour into a jug to serve.