What I was always missing from recipe apps/sites/etc for amateurs is "what if something goes wrong" intructions. Maybe it's just me who's too unexperienced or simply incompetent but I reguralry make mistakes such as undercooking the potatoes, forget to salt something, things like that. Obviously, an experienced chef usually has a few ideas how to sort out such issues. I think if this chart app had such "failback measure hints", that would be great.