Reese's Peanut Butter Cups

Reese's Peanut Butter Cups

Ranking: 2
Annual sales: $516.5 million
Who makes it: Hershey

H.B. Reese was a former dairy employee of Milton S. Hershey who began selling "penny cups" of peanut butter dipped in Hershey's chocolate in 1923. Hershey bought his company 40 years later. A spin-off, Reese's Pieces, got a lift when extraterrestrial E.T. proclaimed them his favorite in the 1982 movie.