I Want S'more Caramel Corn

I have been dying to make some sort of smore inspired caramel corn for several months now.  I finally had the time to develop this great recipe:

1 batch of air popped pop corn (or 2 bags of microwave popcorn)

place the popcorn in a greased 9x13 or larger pan and put it into the oven at 220 while you make the caramel

For the caramel:

1 cup butter

2 cups brown sugar

1/2 cup corn syrup

1 tbsp molasses

1 tsp cinnamon

 Mix all of the ingredients together and bring to a boil over medium heat in a very heavy pan. 

 Once the mixture comes to a rolling boil (i.e. a boil that you cannot stir down) then you remove it from the heat and mix in 1 tbsp of baking soda.  It is going to foam up.  This is the right thing.  Baking soda is going to make the caramel crisper.

 Stir the caramel sauce around until you have all of your warmed popcorn coated. 

You need to keep the caramel corn in the oven at 220 for the next hour, stirring every 15 minutes.

 While your caramel corn is cooking, you should cut up 1 bag of mini candy bars into thirds.  You could use chocolate chips, but I love the look and taste of the candy bars.  Once the caramel corn is totally cool, you can mix in 2 cups of mini marshmallows and the candy bars.  You could also add some mini graham crackers like teddy grahams, but the caramel has a flavor similar to a graham cracker.