In a pressure cooker, add leek, shitake mushroom, potato, white button mushroom, enoki mushroom with enough water and salt.
Pressure cook it to 4 whistles to make it mushy. Allow the pressure to release it by itself.
Wait till the mixture comes to room temperature.
Use a blender to make the mixture into a smooth paste.
In a hot pot add olive oil and garlic. Saute the garlic for a while to change the color it.
Add the ground paste into the pot and bring it to a boil.
Cook covered for few more minutes. Add milk and cook for 2 minutes.
Garnish with fresh parsley leaves and pepper.
Serve hot with Garlic bread.