I want to make it clear that although I am going to argue that peanut butter is far superior than dulce de leche, that the items are in no way metaphors for the countries themselves or any attempt at a masked nationalist argument. I am simply pitting the two foods against each other, and coming to the conclusion the P.B., nutritionally at least-- because I cannot argue personal tastes-- is a better way to butter up your toast for breakfast.
Examining the ingredients in each of the products, D.d.L. includes milk, sugar, glucose and flavoring such as vanilla, where as P.B. has peanuts, salt and sugar (depending on the brand). Calorically, D.d.L. per 2 tbsp has 124 calories whereas the same amount of P.B. has 200.
But calories certainly are not all that matters. If one eats a piece of bread with D.d.L. on it, their blood sugar is going to skyrocket and then by 10a.m., they are going to crash and be incredibly hungry, whereas P.B., which is more dense with fat and protein, is going to leave the person feeling fuller for longer. The protein and the fat are worth the extra calories, because they are going to build muscle mass (as long as the person is active), whereas D.d.L. only affords an excess of carbs which in convert to fat the second they are not used.
P.B., however, does have an incredibly large amount of fat. It would be delusional to think that the fat won't turn into fat on your body, or even the excess protein won't if you don't workout. 17g in 2 tablespoons is 26% of a daily intake, but by buying the right brands (any homestyle or trans fat free) the fat is a necessary component for your brain to function. I am not going to say that P.B. makes you SMARTER per se, but it couldn't hurt, right?
In terms of their versatility with desserts, D.d.L. is ubiquitous in Argentina. Anything can be found with it, but P.B. keeps up in the U.S. from cookies, puppy chow or Reese's peanut butter cups.
In returning from Buenos Aires, I have been looking for reasons why I am happy to be home. Peanut butter has definitely welcomed me. . .but we'll just see how happy I am to see it once I've gained 10 pounds.