Miso-Mushroom Barley Soup¶

| 4 | 1 hour |
Ingredients¶
2 Tbsp (25 g) olive oil
1.5 lbs (680 g) cremini mushrooms (trimmed and quartered)
kosher salt
freshly ground black pepper
1 bunch scallions (trimmed, light green and white parts thinly sliced)
¼ to ½ tsp crushed red pepper
4 cups low-sodium vegetable broth
2 cups (454 g) water
1 cup (213 g) pearl barley
4 tsp (24 g) white miso
1 Tbsp (15 g) soy sauce
5 oz (142 g) baby spinach
1 lime (optional)
Cookware¶
1 large pot
1 rubber spatula
1 wooden spoon
Instructions¶
Step 1¶
In a large pot, heat olive oil over medium-high heat until shimmering. Add cremini mushrooms (trimmed and quartered) and season lightly with kosher salt and a few grinds of freshly ground black pepper. Cook, stirring occasionally, until the mushrooms shrink down and release their juices, 6 to 7 minutes.
Step 2¶
Stir in scallions (trimmed, light green and white parts thinly sliced) and crushed red pepper and cook until softened, about 2 minutes.
Step 3¶
Pour in low-sodium vegetable broth, water, and pearl barley. Raise the heat to bring the liquid to a boil, then lower heat to maintain a simmer. Cook, stirring occasionally, until the barley is tender, about 30 minutes.
Step 4¶
During the last 5 minutes of cooking, stir in white miso and soy sauce. Use a rubber spatula or wooden spoon to seek out any miso clumps, flattening them against the side of the pot to help dissolve.
Step 5¶
Add baby spinach in batches, adding a handful and stirring until wilted. Taste and season with more soy sauce or salt as needed. Squeeze in half a lime (optional), if using, and cut the rest into wedges for serving. Finish with some freshly ground black pepper and serve.
Tip
- Texture: Quartering the mushrooms allows them to retain bite, but you can thinly slice them if you prefer a softer, more tender texture.
- Salting: Resist the urge to salt heavily during the bulk of cooking; the miso and soy sauce add significant sodium at the end.
- Reheating: The soup thickens as it sits; add more water or broth when reheating.
- Variations: Swap pearl barley for farro, or replace baby spinach with chopped bok choy or sturdy greens.