Popcorn Balls
["5 qt. popped popcorn", "2 c. sugar", "1 1/2 c. water", "1/2 tsp. salt", "1/2 c. corn syrup", "1 tsp. vinegar", "1 tsp. vanilla"]
["Keep popcorn hot and crisp in 300\u00b0 oven.", "Butter sides of saucepan.", "Mix together remaining ingredients, except vanilla. Cook to hard ball stage (250\u00b0).", "Add vanilla.", "Pour slowly over hot, popped popcorn, stirring just to mix thoroughly.", "Butter hands lightly; shape into balls.", "Makes 15 to 20 balls."]
["popcorn", "sugar", "water", "salt", "corn syrup", "vinegar", "vanilla"]