This is a great last minute recipe for a crowd. I raised three boys who always had friends over. They always asked me to make this.
1Bring to a boil: Karo,butter and sugar. Let boil for a couple minutes until sugar is dissolved. Take off burner and add vanilla.
2While the syrup is heating, microwave popcorn. I put a cookie cooling rack over a tray so I can weed out all of the unpopped kernals.
When done, pour syrup over and mix well.
3Be careful, it's addicting!