The origins of the Klondike® bar can be traced back to Switzerland and the Isaly Family, a family known for fine dairy products. William Isaly founded the Isaly Dairy Company around the beginning of the 1900s. The original Klondike® bar was handmade by dripping square slices of ice cream in pans of rich, delicious Swiss milk chocolate. The family produced the bars in Ohio just outside of Youngstown and in Pittsburgh. By the 1940s, the Isaly family had several dairy plants that supplied more than 300 Isaly Dairy stores. Klondike® bars were sold in all the stores.