I found these Argentinian treats in a coffee shop in Miami and haven't stopped talking about them (and eating them) all week. Made by the well known Havanna brand, the best of the five flavors are the Dulce de Leche, which are coated in meringue. The textures and flavors create an uncommonly complex experience. These cookies are big and rich, and I find that one is more than enough to get the job done. The look and heft of the package is impressive and makes a great gift. If you can't find them in your neighborhood, they are available online from a great Latin food resource you should know about anyway: Amigo Foods. A box of 12 (6 chocolate, 6 dulce de leche) will cost you around $24.