2 c. light brown sugar
2 sticks butter
1/2 c. Karo syrup
1/2 tsp. baking soda
1 tsp. vanilla
6 qt. popped popcorn

Melt butter, add sugar and Karo syrup. Cook over medium heat for 5 minutes after it reaches a boil. Stir often. Remove from heat, add soda and vanilla. Pour over popcorn, mix with spoon and pour on cookie sheets or 9x13 inch pan. Bake at 250 degrees for 1 hour, stirring every 15 minutes. Cool on wax paper.