A zesty sweet treat!
Combine sugar, water, marmalade, salt, light corn syrup and vinegar in a saucepan; bring to a boil, stirring until sugar dissolves.
Cook to hard-ball stage (250 degrees Fahrenheit).
Pour slowly over popped popcorn and mix thoroughly and remove any unpopped kernels.
Butter hands and shape into 2 1/2-inch balls
Recipe compliments of The Popcorn Board