When you read a recipe and think "That's not going to work" but it's written by a professional, so you follow it exactly..... and it doesn't work.
reddit: the front page of the internet 2021-03-06
That's right Mary Berry, I'm looking at you.
That rich, moist chocolate cake you promised ended up dryer than a hot day in the Sahara and packed full of weird, gritty bits of cocoa.
All in one method my arse.