This hearty miso soup with soba noodles and tofu is a full meal rather than a side — a tahini-deepened broth with broken soba, cubed tofu, and shredded nori. Thirty minutes, one pot, and the kind of savory comfort cold evenings ask for. White or yellow miso keeps it gentle.
There’s nothing quite like a steaming bowl of miso soup to soothe the soul. This recipe takes that classic comfort to the next level, transforming it into a hearty, satisfying meal with the addition of earthy soba noodles and protein-packed tofu. It’s my go-to for a quick, nourishing weeknight dinner that feels both incredibly wholesome and deeply flavorful. Best of all, it comes together in just 30 minutes!
Ingredients
• 1 tablespoon / 15 ml (0.5 fl oz) sesame oil
• 3/4 cup / 75 g (2.65 oz) sliced green onions
• 1 tablespoon / 15 g (0.53 oz) grated fresh ginger
• 2 cloves garlic, minced
• 4 cups / 1 liter water
• 1/4 teaspoon / 1.5 g (0.05 oz) ground black pepper
• 4 ounces / 115 g (4.1 oz) dried soba noodles, broken into 1- to 2-inch pieces
• 1/2 cup / 120 ml hot water
• 1/3 cup / 85 g (3 oz) miso paste (white or yellow recommended)
• 2 tablespoons / 30 ml (1 fl oz) tahini
• 1 12.3-ounce / 350 g (12.3 oz) package firm tofu, drained and cut into 1/2-inch cubes
• 1 tablespoon / 15 g (0.53 oz) shredded nori or wakame (seaweed)
Instructions
1. In a large saucepan or Dutch oven, heat the sesame oil over medium heat. Add the sliced green onions, grated ginger, and minced garlic. Sauté for 2 minutes until fragrant, stirring frequently.
2. Pour in the 4 cups (960 ml) of water and add the black pepper. Bring the mixture to a rolling boil. Add the broken soba noodle pieces, return to a boil, then reduce the heat to a simmer. Cook, uncovered, for 5 minutes.
3. While the noodles cook, prepare the miso slurry. In a small bowl, whisk together the 1/2 cup (480 ml) of hot water, miso paste, and tahini until smooth and fully combined.
4. Stir the smooth miso mixture into the soup. Gently add the cubed tofu and shredded seaweed. Continue to simmer for 1 to 2 more minutes, just until everything is heated through. Be careful not to boil the soup after adding the miso.
Nutritional Information
• Per Serving (approximate)
• Calories: 202
• Total Fat: 8 g
• Saturated Fat: 1 g
• Cholesterol: 0 mg
• Sodium: 728 mg
• Carbohydrates: 22 g
• Fiber: 3 g
• Protein: 11 g
Pro Tips
• Never boil miso paste. Adding it at the end of cooking and heating it gently preserves its delicate flavor and beneficial probiotics.
• For a firmer texture, press your tofu for 15-20 minutes before cubing it. This removes excess water and helps it absorb the flavors of the broth.
• Feel free to add more vegetables! Sliced shiitake mushrooms, baby spinach, or bok choy are excellent additions. Stir them in during the last few minutes of simmering.
• Elevate your soup with garnishes. A drizzle of chili oil, a sprinkle of toasted sesame seeds, or extra fresh green onions on top adds wonderful texture and flavor.
FAQ
Q: Is this miso soup recipe vegan
A: Yes, this recipe is 100% vegan. All ingredients listed, including the miso paste, tofu, and soba noodles, are entirely plant-based.
Q: How can I make this miso soup gluten-free
A: To make this recipe gluten-free, use 100% buckwheat soba noodles, as many common brands contain wheat flour. You can also substitute them with an equal amount of gluten-free ramen or rice noodles.
Q: Can I add more vegetarian protein to this soup
A: Absolutely. Besides the tofu, you can easily boost the protein by adding a cup of shelled edamame or increasing the amount of firm tofu. For a different texture, try adding baked or pan-fried tofu instead of raw.
Q: How do I store and reheat leftover miso soup
A: Store leftovers in an airtight container in the refrigerator for up to 3 days. The soba noodles will soften over time. Reheat gently on the stovetop over low heat, being careful not to let it boil, which can damage the miso’s flavor and probiotics.
Pro Tips
- Never boil miso — dissolve it in the hot water off the heat, or its live, toasty flavor turns flat and dull.
- Break the soba noodles into short lengths before cooking so the soup eats with a spoon instead of a fork-fight.
- The tahini is the body of this broth; whisk it smooth with a ladleful of the hot liquid before stirring it in, so it doesn't clump.
- Add the shredded nori at the very end — it rehydrates in seconds and turns soggy if it sits.
Frequently Asked Questions
Is soba gluten-free?
Often not — many soba noodles blend wheat with buckwheat. Check the package if it matters; gluten-free soba exists.
What's the difference between white and yellow miso?
Both are milder and sweeter than red miso; either gives this soup its gentle saltiness. The recipe recommends white or yellow.
Can I make miso soup ahead?
Make the broth ahead, but cook the noodles separately if storing — soba left in broth drinks it up and goes soft.
What can I use instead of tahini?
Smooth nut or seed butters work in a pinch — you're after body and richness more than sesame flavor specifically.
Recipe card below.
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Hearty Miso Soup with Soba Noodles and Tofu
Ingredients
Method
- In a large saucepan or Dutch oven, heat the sesame oil over medium heat.
- Add the sliced green onions, grated ginger, and minced garlic.
- Sauté for 2 minutes until fragrant, stirring frequently.
- Pour in the 4 cups (960 ml) of water and add the black pepper.
- Bring the mixture to a rolling boil.
- Add the broken soba noodle pieces, return to a boil, then reduce the heat to a simmer.
- Cook, uncovered, for 5 minutes.
- While the noodles cook, prepare the miso slurry.
- In a small bowl, whisk together the 1/2 cup (480 ml) of hot water, miso paste, and tahini until smooth and fully combined.
- Stir the smooth miso mixture into the soup. Gently add the cubed tofu and shredded seaweed.
- Continue to simmer for 1 to 2 more minutes, just until everything is heated through. Be careful not to boil the soup after adding the miso.
