Before I made this recipe I read the comments and was a little worried about the cheese getting hard like others had complained about. After making it I found out why, if you make the recipe with regular chips, not baked, the cheese will get hard. That is caused by the oil in regular chips mixing with the cheese on top and causing it to brown. However the recipe was still delicious. I made it again with the baked chips and it turned out perfect! Everyone really liked it!