This snack is definitely not limited to Halloween, but I served it at my Halloween party.
Maple Caramel Corn
8-10 cups (popped) popcorn
3/4 stick butter
1 1/2 cups maple syrup
Melt the butter in a saucepan and add maple syrup. Bring to a boil and cook until it reaches 300 degrees, or for about 15-20 minutes. Pour mixture over popcorn, stir, and let cool.
Enjoy! Don't come calling me when you get cavities, though.