Bring to a boil, stirring cons tantly. Cook to 235 degrees Without Stirring At All! Stirring makes grainy fudge. (So does stirring before it cools to luke warm.) Immersed pan in cold water: don't stir until candy is only luke warm. If you have a marble slab, this is easier. Pour out onto Marble slab: Let stand until lukewarm.
(Ok to pour vanilla, etc. Right on). Work back & forth until it starts to set up. Form into a long roll; slice and wrap tightly sealed. Dolores McCann, Oh, from the Hershey's Cocoa can.