Salted Caramel Apple Popcorn Bars

Ingredients:

2 cups Caramel Apple Popcorn (find a great recipe here: http://www.eatthelove.com/2013/10/caramel-apple-popcorn/)
2 cups Caramel Popcorn
4 cups vanilla chex cereal
1 cup butterscotch baking chips
6 cups mini marshmallows, divided
1 jar smuckers salted caramel sauce (or your favorite brand)
12 ounces butter, divided

Directions: