Where was brownies invented?

•The brownie first appeared in public during the 1893 Columbian Exposition, held in Chicago, Illinois. A chef at the city's Palmer House Hotel created the confection after Bertha Palmer requested a When_did_brownies_first_startfor ladies attending the fair; it should be, she said, smaller than a piece of cake and easily eaten from boxed lunches. These first brownies featured an apricot glaze and walnuts, and they are still being made at the hotel according to the original recipe