Miso Soup with Silken Tofu & Soba
Miso soup does something that very few things in this collection do - it’s warm, deeply savory, and genuinely easy on the gut all at the same time. The silken tofu melts into the broth. The soba gives it enough substance to be a meal. Ten minutes, one pot. This one is worth learning because once you know it, you’ll come back to it on the days when almost nothing else sounds right.
Allergens:
Ingredients
Ingredient notes:
- White miso paste - White miso (shiro miso) is the mildest, sweetest, and lowest in sodium of the miso varieties - the right choice for early GLP-1 phase. Red miso is deeper and saltier - save that for later. Miso keeps in the fridge for months.
- Silken tofu - Not firm, not extra-firm - silken specifically. It has the texture of very soft custard and almost disappears into warm broth. Find it refrigerated or shelf-stable in the Asian foods aisle. Handle gently - it breaks apart easily.
- Soba noodles - 2 oz dry is an intentionally modest portion. 100% buckwheat soba is higher in fiber than regular noodles. Cook separately and add to the bowl at serving - soba absorbs liquid quickly and turns mushy if left in the pot.
- Dried wakame - Optional but authentic. Rehydrates in hot broth in about 2 minutes, adds mild briny depth, and contributes iodine and minerals. Find it in Asian grocery stores or the international aisle.
- Miso must never boil - Boiling destroys the beneficial probiotic cultures and makes the miso sharp and salty. Dissolve it in warm broth just below a simmer. This is the most important technique note in this recipe.
Recipe Instructions
- Cook the soba - Bring a small pot of water to a boil. Cook soba noodles per package instructions - usually 4–5 minutes. Drain and rinse under cold water to stop cooking and prevent sticking. Set aside in your bowl.
- Heat the broth - In a medium saucepan, combine water and broth over medium heat. Bring to a gentle simmer - small bubbles rising but not a rolling boil. Add dried wakame if using and let it rehydrate for 2 minutes.
- Dissolve the miso - off heat - Remove the pan from the heat or reduce to the lowest possible setting. Add miso paste to a small bowl or ladle. Spoon 2–3 tablespoons of the warm broth over the miso and whisk until completely dissolved - no lumps. Pour the dissolved miso back into the pot and stir gently. The broth should never boil again after the miso goes in.
- Add the tofu gently - Add silken tofu cubes very gently - slide them in rather than dropping them. Let them warm through in the hot broth for 1–2 minutes without stirring. They are fragile. Let the broth do the work.
- Assemble and serve - Ladle the miso broth and tofu over the soba noodles in your bowl. The hot broth will warm the noodles. Top with sliced green onion, a few drops of sesame oil, and a small splash of soy sauce if using. Eat slowly. This one rewards patience.
Recipe notes:
On sodium Miso paste is naturally higher in sodium. White miso at 2 tbsp contributes roughly 1,000–1,200mg. If sodium is a concern, use 1.5 tbsp miso instead and skip the soy sauce finish.
On soba Soba cooked and stored separately will keep in the fridge for up to 2 days. Rinse with cold water before serving. Add to the bowl and pour hot miso broth over it at serving.
Nutrition Per Serving
Serving Size: 1 bowl
| without wakame | with wakame | |
|---|---|---|
| Calories | 310 | 315 |
| Protein | 22g | 22g |
| Total Fat | 7g | 7g |
| Total Carbohydrate | 42g | 43g |
| Dietary Fiber | 3g | 3.5g |
| Sugar | 2g | 2g |
| Sodium | 1100mg | 1150mg |
Based on white miso paste, 2 oz dry soba, and ½ block silken tofu. Sodium is naturally higher due to miso - use 1.5 tbsp miso to reduce to ~850mg. Values will vary by miso brand. Nutritional information is estimated and provided for general guidance.