I saw the movie Harold vs Kumar and I've always wondered what was so special about these tiny burgers? Are they as good as it is portrayed? It's on my bucket list lol
So to give a more serious answer: White Castle burgers are very much in the style of the original burgers that became popular in the US in the 20s or so. These were sold at sporting events, fairs, etc, and were similar in concept to a hot dog: cheap fast hot meaty snack. They were typically cooked on griddles, and seasoned only with some grilled onion, served on whatever local sliced bun was available in quantity from a baker. The grease and such would build up over the day to where in later hours it was more shallow frying, particularly for the onions.
Anyhow, they're not everyone's cup of tea, and if you're expecting a miniature version of a $12 premium burger no, this ain't that. They're bare bones, and not for someone who dislikes the combo of beef and onion. But within that they're pretty tasty and satisfying.
The call the burgers sliders for a reason. They slide in, they slide out. Most people don't handle the grease very well. Some people swear by them, others curse them as never again until their next time out drinking all night. I don't personally care for them at all. My wife loves them.
But, I'll give White Castle credit. They know what they are and what their market is and they seem to do good business.
They are just cheap burgers but are good because you can get 12 for like $6 or so. You get a ton of food for not a lot of dime which makes it great when you are drunk or high.
The quality of food is exceptionally bad. After 2/3 sliders I did not want to eat anymore. Think of the worst fast food burger you've ever eaten. Think about the quality of the meat. Now imagine meat that is one or two grades lower and that is White Castle.
They are definitely unique when compared to other burgers. Greasier, with more of an onion flavor. I personally love them but don't get them more than a couple of times a year to save my digestive system the grief.
One defining feature before the last couple of years is that they were always open 24 hours. They are also nice if you are craving strong coffee that smells like grilled onions.
Anyhow, they're not everyone's cup of tea, and if you're expecting a miniature version of a $12 premium burger no, this ain't that. They're bare bones, and not for someone who dislikes the combo of beef and onion. But within that they're pretty tasty and satisfying.