It's tough to imagine a time when freezing a chilly dessert wasn't as simple as popping it in the freezer, but electric refrigerators (and freezers) weren't a thing in most American homes until 1913.

Melt Hershey bar with marshmallows and milk in top of double boiler; cool. Whip cream; fold cooled Hershey mixture into whipped cream and pour into crust. Chill all day or overnight. Sprinkle with a ...