Brownies first appeared in public in 1893. At that time an event was held in the form of an exhibition titled Columbian Exposition held by one of the major cities in America, Chicago, Illinois. At that time a chef from the Palmer House Hotel made a cake innovation after the hotel owner Bertha Palmer asked him to serve dessert for him and the women present at the exhibition. The chef is asked to make a cake that is different from the others into small pieces so that it is easy to eat.
It is said that from the many stories that circulated, brownie cake originated from a chef who forgot to enter the developer cake ingredients called baking powder in the recipe for the chocolate sponge cake. So as a result after the sponge cake is baked it doesn't expand like the sponge cakes that he used to make. The texture of the chocolate sponge cake, which should be soft, thick, and much porous, becomes soft, dense and slightly damp. But consumer responses are really different. The failed recipe is considered a new recipe from the chef and consumers love it