[thebenedict]

If you'd consider an (inexpensive) paid option, https://www.ckbk.com/ takes an interesting approach. They partner with publishers to put cookbooks online. Fairly powerful search/filters, and the focus on cookbook content is a good proxy for recipe quality.

I'm not affiliated with them, but Matt (cofounder) has a background in scientific publishing and is passionate about recipe sharing.

[rdtwo]

Are they verified recipes? I’ve found that a lot of books just stole recipe and never tested similar to how online does it now. Also lots of recipes are needlessly complex