Observed on June 12 in the USA, this food holiday celebrates a cookie popular since the early 1900s when it was first published as a recipe by George Washington Carver and promoted by the Tuskegee Institute in a peanut cookbook "How to Grow the Peanut and 105 Ways of Preparing it for Human Consumption."

Early peanut butter cookies were made with chopped peanuts; soft peanut butter was added to the cookie recipes in the 1930s.

Widely recognized on food calendars, this food holiday is celebrated with baking, sharing recipes, and enjoying the classic treat.