Harumaki (or spring roll actually in Japanese) are deep-fried egg rolls which are known well in Chinese cuisine in the US. Many people who are not familiar with much Japanese food may even have had Harumaki at some point of life. Harumaki is also a popular Chinese dish in Japan, similar to Gyoza dumplings. You can find Harumaki at Chinese restaurants over there, of course, but it’s also a very common home-made food Japanese moms make for dinner. If you only know them from restaurants, this is way better than that (hopefully!), and it is worth trying at home.