Before I bake anything, I write down the recipe on a notebook first and then triple check if I have copied everything. Not gonna lie but I'm guilty of skipping an ingredient or procedure when I was just starting with baking. But truth be told the same thing still happens to me to this day!
Have you ever caught yourself missing an ingredient when you've already placed everything in the oven?
I know. Such a catastrophe, right? I baked a banana cake once...and forgot about the sugar.