The burnt batch of cookies at my grandma's house in 2004 taught me more than any recipe
I was 11 and left them in for 18 minutes instead of 12, and she made me eat one anyway while saying 'now you know what too long looks like.' Now I set a timer and actually listen to it instead of guessing, so what's the one kitchen mistake that stuck with you?
Wait your grandma made you eat a burnt cookie as a lesson? That is both hilarious and kind of harsh for an 11 year old just trying to help out. Mine just threw the whole tray away and never let me near the oven again.