Caramel Corn

From: Karen...
1 cube butter
1 can sweetened condensed milk
1 lb. (2 cups) packed brown sugar packed
1 cup Karo


Bring to a boil, let boil for about 8 minutes or so (this should look like a nice caramel color).. Pour over popped corn, this makes a large bowl (I use my largest silver bowl worth of popcorn, remember to remove un-popped corn).  So so good!