"RTFM" My irritation is that most recipes make a huge amount of assumptions - at least as many as code that assumes a certain version of library. You can get recipes that say things as vague as "prepare the chicken" and aren't at all clear what they mean, unless you've seen someone do it first, but it's published in a book like you should just know. I hate that. I also frequently see quantities like "1 can" which just drives me insane as though that's a standard unit.

There's also plenty of cooking specific jargon, so densely packed that beginners might spend the majority of the recipe looking up what the terms mean. "Chop" parsley - how finely? "Mix the ingredients" how long? What the fuck is Golden Brown actually?