As a EU citizen you are probably aware not a single food from the US comes from the US... there is NO food exported by the US to anywhere else that did not come from somewhere else to begin with. Real American foods such as American Cheese, American Beer, Grits and .... well that is about it, are not export. American bakery products are amongst them. And for good reason.
Twinkies are famous for being one of two things to outlast the nuclear holocaust. And you got to pity the cockroaches if that is the only food left. The maker claims their long life is a myth but I tested this by keeping them on a hot PC for over 2 years and the taste at the end had not changed. Can't say if they spoiled, just that the taste has not changed.
So what is the taste. Imagine a cake.... now imagine cake without butter. Ah, like Chiffon cake you might say... NO. In order to have a long shelf life, the hostess company does not put butter in its cakes. This might confuse those of you who think ordinary cake with butter has a long shelf life if properly wrapped but you know, Americans. They have however NOT simply made a Chiffon cake (also does not contain butter) but added something else. Don't know what but it is chemical You could lick an oil refinery and not encounter such a chemical taste. Why you might want to lick a oil refinery? Possibly because you just ate a Twinky.
The cake is truly horrible in every regard, taste (chemical), texture(dry), color(frightingly yellow pale). Inside the Twinky the ugliest caterpillar ever made a cocoon and died just as its entire body had degraded into a white mass. There are various candy interiors you better not think about to closely, this is they their queen. I think it actually serves as a coating for you taste pupils to guard you against the true horror of the cake.
So why do American love it so much?
When I went to the US a few years ago, I went on the hunt for them because I heard so much about them and had to taste them. Most Americans I asked had no idea what I was talking about. I finally found them at Redneck central Walmart. Everything you ever heard about the USA and don't really believe is happening right now at Walmart. I now understand the compulsive need American feels to own a dozen machine guns.
If you EVER hear about a regional delicacy that hasn't made it past its region. Take a GODDAMN HINT. Chocolate, Beer (except American), Wine, Cheese, Appels etc etc ARE NOT regional delicacies because they taste damned good and everyone loves them. Rotten fish, maggot cheese, American cheese are ONLY available in select locations because everyone will sooner declare war then import them. This includes ANYTHING from the hostess company.
They went bankrupt for a reason. Americans are fond of them because their mothers (who hated them) gave them a cake from a big box to shut them up and of such things the memories of childhood are made. But nobody in the US actually eats them. You shouldn't either, I did so you don't have to.