In yet another show of retro and traditional Korean products re-emerging and even trending in fact, yanggaeng (양갱) is hot! K-pop sensation Bibi’s latest hit, “Bam Yang Gang,” has stirred up a craze and yanggaeng, a traditional Korean jelly dessert, sales are trending up. First it was the newtro (뉴트로) trend and then the Halmennial, the combination of “halmeoni” (할머니), the word for grandmother in Korean, and “millennial” as younger connoisseurs were embracing all things nostalgic so it’s no surprise that yanggaeng is now reaping the rewards. Whether you want to try it because of the song, or are just interested in all things traditional Korean, let me fill you…