platejoy? Well its not technically a cookbook, but...

Its a y combinator company and does meal planning online. If you have some diet restrictions its useful. I does seem to grocery list/ knows what you should have in stock (digital pantry based on your shopping list). We've been using it a couple years now (after dealing with the overflowing vegetables from a CSA) and its been good. Lost a little weight too.

[1]https://www.platejoy.com/