2 gal. popped corn (1 lb. bag)
2 c. brown or white sugar
2 sticks butter
1 c. Karo
1/2 tsp. baking soda
1 tsp. vanilla

Cook sugar, butter and Karo 5 minutes. Stir all the time. Add soda and vanilla. This will foam. Stir and pour over corn. Keep stirring until coated well. Bake in oven on cookie sheet 1 hour at 250 degrees. Stir every 15 minutes.