You can add anything Amazon carries, including Fine Cooking, by looking for the ASIN number. For books the ASIN is the same as the ISBN of a book, but other items have them too. It's listed on the description of the item and is also in the URL, like so:

http://www.amazon.com/exec/obidos/ASIN/B000063XJQ ...

[long unnecessary url truncated to keep the page from breaking]

the ASIN is the sequence just following /ASIN/ in the URL above, namely: B000063XJQ. Pop that into the reviews entry and off you go.

Lynn Siprelle, Editor