1/2 c. unpopped popcorn
1 c. brown sugar, firmly packed
1/2 c. light corn syrup
1/2 c. butter
1/4 c. butterscotch chips
1 tsp. vanilla extract
1/2 tsp. baking soda
1/4 tsp. salt
1 (8 oz.) can walnuts

Heat oven to 250 degrees. Grease 14"x10"x2" roasting pan. Pop popcorn. Meanwhile in saucepan bring brown sugar, corn syrup and butter to a boil, stirring until sugar dissolves and butter melts (medium heat). Reduce heat and cook 5 minutes, stirring occasionally. Remove and stir in butterscotch chips, vanilla, baking soda and salt until smooth. Stir in popcorn and walnuts. Pour mixture into baking pan and bake 45 minutes. Turn mixture out of pan onto foil to cool. Break popcorn into smaller pieces and store in air tight container in a cool place.