Firstly we are very sorry the recipe you found didn't work, any failed import automatically alerts us so we can take a look and see what went wrong.
We are continually monitoring imports and are working to support more websites, but unfortunately some are a little tricky and don't use the formats we currently support. The HTML clipper will only work with websites which support structured recipe data. CookBook supports all modern machine readable markups and formats including HRecipe, Microdata, Recipe schema and JSON-LD.
Unfortunately websites hold and display their information in a variety of methods and formats which are not always compatible. If you want your website to be supported by CookBook, please use one of the above formats.
If you are having trouble with importing a website and you know it supports one of these formats then please use the contact us on firstname.lastname@example.org to tell us what went wrong and we will get a techie on it.