A vintage newspaper clipping for popcorn balls, date unknown:

MRS. BECK makes 15 popcorn balls about 2 1/2 inches in diameter with her recipe.

1 cup corn sirup
1 cup brown sugar
1/4 cup water
1 teaspoon vinegar
2 tablespoons butter or margarine
2 quarts unsalted popcorn

Combine sugar, sirup, water and vinegar in saucepan. Cook over medium heat, stirring constantly until mixture boils.

Continue cooking, stirring almost constantly to hard ball stage or until small amount of mixture forms hard ball when tested in cold water.

Remove from heat. Quickly add butter and blend. Slowly pour over popcorn in large bowl, mixing well. Form into balls using as little pressure as possible. Butter hands for easier handling.