First, when making pickles, make sure you have a pot large enough to process the resulting jars. Durrr. I have never used pint sized jars before, only smaller ones. So imagine my surprise when they were taller than all my pots, and of course I hadn't borrowed my Mum's Big Pot.
I ALSO learned that making Yorskhire Pudding is harder than it seems. Well, maybe it's not harder than it seems, maybe you just need to pay attention to the recipe before you go slinging flour and egg all over your kitchen and throwing them in the oven. Oh, that part about how it is CRUCIAL to pre-heat the muffin tin, and that your ingredients be at room temperature? Yeah, missed that.