- 6 quarts popped popcorn
- 2 cups packed brown sugar
- 1 cup butter or margarine
- 1/2 cup corn syrup
- 1 teaspoon salt
- 1 tablespoon vanilla extract
- 1/2 teaspoon baking soda
- Place popcorn in a large bowl and set aside. In a saucepan, combine brown sugar, butter, corn syrup and salt; bring to a boil over medium heat, stirring constantly. Boil for 5 minutes, stirring occasionally. Remove from the heat. Stir in vanilla and baking soda; mix well. Pour over popcorn and stir until well-coated. Pour into two greased 13-in. x 9-in.x 2-in. baking pans. Bake, uncovered, at 250 degrees F for 45 minutes, stirring every 15 minutes. Cool completely. Store in airtight container or plastic bags.