Blend and boil kabocha squash, soy milk, salt, and unsalted butter.
Wash the pumpkin thoroughly, peel it, and slice it thinly.
Cut other ingredients like mushrooms, tofu, and green onion into bite-sized pieces.
Pour water into a pot and bring it to a boil.
Once the water is boiling, add the pumpkin, mushrooms, and tofu.
Season with salted shrimp or salt.
Add green onion and boil one more time.
Serve the finished pumpkin porridge in a bowl.