These bars are amazing. Served them to 4 adults and 2/3 of the pan were gone! I did use 2 cups of flour, doubled the caramel layer and used 2 cups milk chocolate chips. After baking it, I let it cool, then I melted the chocolate in the microwave and poured on top which made it much easier to spread. This should be allowed to cool for a few hours in order to set properly, which made it easier to cut and less "oozy". Would absolutely make it again, and again!