National Cookie Dough Day is observed worldwide every June 21 to celebrate the popular treat that many consider a comfort food. The day highlights cookie dough, a mixture of ingredients used to make cookies, which has roots dating back to the 17th and 18th centuries. While the practice of tasting raw cookie dough has been around for a long time, the trend of edible cookie dough emerged in the 2010s, leading to its commercial availability. Notably, Ben & Jerry’s introduced chocolate chip cookie dough ice cream in 1984, which remains a favorite. DŌ, Cookie Dough Confections in New York City, is credited with promoting this holiday and popularizing edible cookie dough. Celebrations often include enjoying cookie dough as is, mixing it into ice cream, or baking cookies to share with others. Participants are encouraged to use the hashtags #NationalCookieDoughDay and #CookieDoughDay on social media.