I made this and it came out great, I substituted the choc chips and walnuts with swirls of nutella on top, and it came out to be very moist and chewy in the middle. However a main thing I would recommend to others is to use less sugar and butter. My blondie was too sweet and was quite oily on the bottom which was unfortunate because I could only eat one before getting sick of them (which sucked cuz it tasted so good). I will definitely be making these again, but with a smaller proportion of sugar and butter.
