At our house we always ate soft gooey caramel corn. Sure, the crispy kind is good, but this is better. Also. it makes a TON, so halving the recipe is no problem.
1 can sweetened condensed milk
2 cups brown sugar
1 square margarine
1 cup corn syrup
1 tsp vanilla
Mix all ingredients together in a medium saucepan and bring to boil. Cook till soft ball stage.
Pour over 12 quarts of freshly popped corn.
Tah dah, it's done! And stays soft and good for a couple days.