Turn this into calculating cookbook

[feedhopper]

I am looking for a smart way to deal with recipes. Smart meaning: being able to alter an existig recipe to reflect the amount of people being cooked for in the list of needed ingredients.

Describe the solution you'd like
I would love this plugin to be tuned to become something like this. I think it is ideally suited: the categories on the left make for a nice way of sorting a recipe collection.
And there should be an intelligent way of parisg popular recipe sites for quickly adding lists people like.

Describe alternatives you've considered
None. Seeing that you may be planning to sell ledger once feature complete, I can say: I am sure there would also be a market for a recipes plugin as a LOT of people are cooking.