Krispy Kreme, Philadelphia

After Vernon Rudolph acquired a closely guarded yeast-raised Krispy Kreme Doughnuts recipe from a New Orleans pastry chef, he shared his appreciation for delectable disks by opening shop in 1937 and selling the first Krispy Kremes to grocery stores. The wafting aroma of glazed Krispy Kreme Doughnuts increased demand for the sweet treats and caused Rudolph to redesign his building's layout to include a walkup window, Rudolph was able to sell them directly to any passing customer who demanded a snack. Later, he joined forces with equipment engineers, creating baking equipment that guaranteed uniform shape and dough consistency.

Rudolph's departure to a pastry-filled afterlife in 1973 did not stop Krispy Kreme from expanding into a global sensation and continuing to innovate. In recent years, the company enhanced the treat-retrieving experience by introducing a Hot Light that, when illuminated, indicates when Krispy Kreme Doughnuts are fresh off the conveyor belt.