Hydrox cookies, introduced by Sunshine Biscuits as “Hydrox Biscuit Bon Bons” in 1908, were the original sandwich cookies in the United States. They were extremely popular and successful, virtually defining the category of sandwich cookie. Oreo cookies were introduced a scant four years later, in 1912. Through aggressive advertising, and rising consumer preference, Oreos soon ... Read more The post What Was the Difference Between Oreo and Hydrox Cookies? first appeared on CulinaryLore.