Oreos

Last night, we got into a little debate (not something that is unusual for us!). Oreos are sold all around the world, even here in La Paz! Some of us on our team believe that Oreos taste the same here as they do in the US. However, others on my team disagree. I am not sure what they think tastes different, some say the creme filling. But it makes no sense to me. Don't they have a uniform formula that they use at all of their factories? What do you think? Have you ever tried Oreo cookies in another country (other than the US). Do they taste the same or different and why? Because to me they seem to taste the same whether you are in the nothern hemisphere or the southern hemisphere!