I'm not working for the company (que surprise eh?) but seriously go ino your neares GS25 NOW and buy a pack of 4 Tofinek caramel wafers for 3,300 won.
Man they are phenomenal. Look I know this is somewhat a fickle topic to post about, but heck we all know food and treats selection is often poor and often overpriced here, so it kinda is a big dealio.
Man with a hot drink (or equally without) - they are the most delicious thing I've eaten for weeks (the last thing was Spanish Salami, Camembert and Gorgonzola as my birthday treat to my good self.)