2 sticks butter
1/2 c. Karo
2 c. brown sugar
1/2 tsp. baking soda
8 qt. popped corn

Boil together for 5 minutes. Remove from heat and add soda; stir well, then pour over corn and mix well.

Bake in a 250°F oven for 1 hour, stirring every 15 minutes. Pour out on table until cool.