June 12, 2012 is National Peanut Butter Cookie Day.
Peanut butter has been around since the time of the Aztecs but peanut butter cookies didn't become an American favorite until the eariy 1900s. In 1916, George Washington Carver began to promote the peanut and its many uses. He even published three peanut butter cookie recipes in his research bulletin entitled "How to Grow the Peanut and 105 Ways of Preparing it for Human Consumption."
However, it wasn't until 1932 that the iconic waffle-like fork marks were added to peanut butter cookies. It was the Schenectady Gazette that published the cookie recipe that called for adding the fork marks. Today, those marks are universally found on peanut butter cookies!
Page 2 has a peanut butter cookie recipe!