2c. brown sugar
2 cubes butter
1/2 c light corn syrup (karo)
1t. salt
1t. vanilla
1/2t. soda

Mix in saucepan: Brown sugar, butter, corn syrup and salt. Boil 5 minutes. Remove from heat stir in soda and vanilla. Pour over 7 quarts (28 cups) popped corn, mix thoroughly in large pan. Bake at 250° for 1 hour. Stir every 15 minutes. Put on waxed paper and separate into bite size pieces.

Thanks to Grandma Button from Bellevue, WA