01 -
Combine dried mushrooms and rosemary in a bowl, cover with boiling water, and allow to steep.
02 -
Heat a large soup pot over medium heat. Add chopped onion and fresh mushrooms, cooking for 8 minutes with occasional stirring. When mushrooms release moisture and begin sizzling, sprinkle with a pinch of salt.
03 -
Stir in the carrots and minced garlic; cook for an additional 2 to 3 minutes, maintaining moistness from mushroom juices.
04 -
Transfer the soaked mushrooms and rosemary, along with the steeping liquid, into a high-speed blender. Add raw cashews and the two whole garlic cloves. Blend until completely smooth.
05 -
Add potatoes, 1 teaspoon salt, black pepper, blended mixture, and 720 ml vegetable broth into the pot. If needed, use additional broth to rinse the blender and pour contents back into the pot. Ensure potatoes are submerged.
06 -
Bring to a boil, cover, reduce heat to low, and simmer until potatoes are barely fork tender, approximately 10 minutes depending on size.
07 -
Stir in balsamic vinegar; increase heat to return to a simmer. Cook uncovered for 5 minutes or until the stew thickens and reduces slightly.
08 -
Remove from heat, taste and adjust seasoning. If using miso, dissolve 2 teaspoons into about 80 ml of hot stew liquid, then stir back into pot. Serve hot alongside crusty bread and a fresh salad.