Pumpkin Blondies

I picked up The Pumpkin Cookbook about a decade ago at a going-out-of-business sale for an independent bookstore - one I had not heard of before getting the flier for said sale. This cookbook is not for those who are wondering what to do with that can of pumpkin you bought as soon as the leaves starting changing color. Everything in this book calls for an actual pumpkin. I imagine that a person might be able to get away with canned pumpkin for any of the recipes that call for pureeing the pumpkin flesh once it's been separated from the shell and cooked, but such was not the case for pumpkin blondies, which calls for whole chunks of pumpkin.