Popcorn Balls

Combine, sugar, cider, syrup, butter and salt in a large saucepan. Bring to a boil over low heat, stirring occasionally. Turn off heat, and remove crystallized sugar from sides of pan with a wet brush. Bring mixture to a boil over medium heat for 4-5 minutes, or until thermometer reads 260 F. Turn to low heat, add vanilla. Turn off heat. When mixture is sufficiently cool, pour over popcorn and peanuts. Mix well, and roll into 3 inch balls. Makes 18.