A Korean chef showed me this trick! It drives everyone crazy!  
Beef lung.  
Cover with water.  
Rinse thoroughly under running water.  
Cover with water.  
2 tbsp salt.  
Black pepper.  
Coriander.  
Allspice.  
Bay leaf.  
Let it boil for 2 hours.  
Coarsely chop onion and carrot.  
Remove the lung and let it cool.  
Onion.  
Vegetable oil.  
Carrot.  
Red pepper.  
Chop the lung.  
30 ml soy sauce.  
2 tbsp rice vinegar.  
1 tsp honey.  
1 tbsp oyster sauce.  
Black pepper.  
Dried paprika powder.  
A bit of cayenne pepper.  
3 cloves of garlic.  
Let it simmer for 10 minutes.  
3 eggs.  
Cover with water.  
Salt.  
Garnish.  
Radishes.  
Spring onions.  
Boiled eggs.  
Dill.  
1 clove of garlic.  
Mayonnaise.  
Black pepper.  
Salt.  
Parsley.