Directions
Sauté the Vegetables
Heat olive oil in a large pot over medium heat. Add onion and celery and cook for 4–5 minutes until softened. Add garlic and cook for 30 seconds.
Brown the Mushrooms
Add mushrooms and cook for 7–9 minutes, stirring occasionally, until they release their moisture and begin to brown. This step builds deep mushroom flavor!
Add Potatoes and Broth
Add potatoes, vegetable broth, and thyme. Bring to a boil, then reduce heat and simmer for 12–15 minutes, until potatoes are tender.
Make It Creamy
Lightly mash about one-third of the potatoes against the side of the pot. Stir in oat milk and simmer gently for 2–3 minutes.
Add the Miso
Reduce heat to low. Place Koji Rich Miso in a small bowl and mix with about ½ cup of the warm soup until smooth. Stir the mixture back into the pot. Do not boil after adding the miso. Taste and season with black pepper and salt only if needed.