This recipe was tested with Nestle La Lechera dulce de leche; look for it in the international foods section. If using Eagle Brand dulce de leche (caramel flavored sauce), thicken according to package directions before using.
What did I do when I couldn't decide between two of my favorite desserts? Combined them! This snickerdoodle-blondie hybrid is even better with my other favorite ingredient: caramel. —Niki Plourde, Gardner, Massachusetts