Soak mushrooms and seaweed overnight in 1 litre of water.
Boil the broth for 20 minutes.
Add puffball paste to the broth. Mix it well and strain into another pot.
Separate mushrooms from seaweed. Discard seaweed, and set mushrooms aside.
Garnish
Separate ground elder leaves from stems and chop them roughly.
Heat oil in the frying pan. Add ground elder leaves and fry for about 5 minutes. They are done when they barely make any crackling sound and look similar to dried nori.
Chop mustard garlic leaves, crow garlic leaves and water pepper.
Stink horn egg and noodles
Peel stink horn eggs.
Cut the eggs in half and blanch them in hot water for 5 minutes.
Cook noodles according to packaging instructions.
Assembly bowl
Add one tbsp of Japanese black wild garlic oil to each ramen bowl.
Pour the broth into the bowls and whisk well.
Add noodles and stink horn egg.
Add cooked mushrooms and garnish with the ground elder, garlic mustard and water pepper.