I'd say a recipe is merely a suggestion. And that's why I'm a recipea-brain. To illustrate, here's my thought
1. *Mixes half the ingredients*
2. *scans list of ingredients again* Bummer. We don't have all of this stuff. *shrugs*
3. *improvising* Cumin? Cinnamon? Basically the same right? *shrugs* Worth a try.
4. *tasting final product* This tastes like crap.
5. *announcing to my wife who has heard it all before* I totally ruined this. *inside thoughts: I'm an idiot.* *eats it anyway*