In saucepan, combine brown sugar, butter, and corn syrup.
Bring to a boil and cook 5 minutes.
Add baking soda, salt, and flavoring.
Place popped corn in large bowl.
Pour syrup over popcorn and mix to coat all popcorn.
Cover 2 jelly roll pans with wax paper.
Spread coated corn in single layer on sheets.
Bake 250 degrees for 1 hour, stirring every 15 minutes.
To make burnt sugar syrup, cook 1 Tbs. sugar in saucepan until brown and melted.
