Vegetable purees can not be copyrighted

Says a New York federal appeals court (AP via law.com). Jessica Seinfeld was sued for trademark and copyright violations after her book, Deceptively Delicious (reviewed here) was published about the same time as Missy Chase Lapine's The Sneaky Chef. Both cookbooks involve sneaking vegetable purees into kid's foods. Lapine also sued Jessica's husband, commedian Jerry Seinfeld, for defamation based on comments he made on The Late Show with David Letterman.