It is!
The secret ingredient is the dark Chinese vinegar which imho is to die for, especially when blended with the sesame seed oil.
The chinese black vinegar is a bit special though, my partner is not that into it so I simply pour extra on my serving😅
Recipe I go with is dead simple and idiot proof:
  • smash the whole cucumber with something (I use a rolling pin, but its a high risk the cucumber breaks which may or may not be your thing)
  • cut into fun pieces
  • put in a bowl
  • add chinese black vinegar, sesame seed oil, garlic, light soy, chili flakes
There's more advanced versions but this is fresch umami enough.