1. Soak dried platycodons in water overnight in advance
2. Rub the soaked platycodon vigorously with salt to remove the bitterness
3. Stir 2 tablespoons of Korean hot sauce
4. Sprinkle some white sesame seeds
5. Put it in the crisper and pickled for a few hours before you can eat
Tips:Rubbing platycodon with salt repeatedly can remove the bitterness of platycodon itself
