I would never think to pair pumpkin with dulce de leche, but it works. I guess I shouldn't be surprised since both of those ingredients are pretty awesome on their own.
With this Bacon and Egg Grilled Cheese with Caramelized Onions and Apples, I might have gone a little overboard but believe me when I tell you this is the most fantastic, indulgent, and amazing combination to ever come across a grilled cheese sandwich.