At the train station in Naugatuck, Connecticut, candy and ice-cream shop owner Peter Paul Halajian used to meet the commuter trains carrying baskets full of fresh hand-made chocolates. The most popular of his candies was a blend of coconut, fruits, nuts, and chocolate that he called Konabar.

In 1919, when demand for his confections grew, Halajian and five associates, all of Armenian heritage, opened a business in New Haven to produce and sell his chocolates on a larger scale. Because there were no refrigerators, they made the chocolate by hand at night, when the air was the coolest, and sold the candy during the day. In 1920 the first Mounds bar was introduced.

Peter Paul merged with Cadbury U.S.A. in 1978, and in 1986 the world's largest candy conglomerate.

Today the recipes for Mounds and Almond Joy are the same as they were in the roaring twenties.