In 1871, Potter Palmer, a Chicago businessman, built Palmer House, a Hilton Hotel, for a wedding gift for his wife, Bertha, who in 1893 asked the hotel’s pastry chef to make a chocolate cake-like treat that would be easy to transport for the World’s Columbian Exposition. The result of this request was the Palmer House Brownie, made of thick chocolate and topped with a walnut and apricot glaze and later published in a Sears Roebuck Catalog in 1898.