“It is said that the brownie was created at the Palmer House Hotel during the 1893 Columbian Exposition( The largest World’s Fair of it’s time) when the owner Bertha Palmer asked the chef to make a ‘ladies dessert’. Brownies were one of the very first prepackaged food ‘mixes’ ever sold.”
Read More: http://foodimentary.com/2013/02/10/february-10-national-have-a-brownie-day