I have asked this question before. But we have so many new members, that I thought it bears being revisited.
What makes a recipe for you a "deal breaker." You look at it and decide to go on to something else.
For me it is:
Too many ingredients.
Two many complicated steps.
More than 24 hours of preparation.
Illegitimi non carborundum!
I don't want my last words to be, "I wish I had spent more time doing housework"