Chawanmushi with Shiitake & Mitsuba (Japanese Washoku Tradition)
Silken steamed egg custard infused with homemade kombu-shiitake dashi, topped with earthy fresh shiitake and aromatic mitsuba. A savory, umami-rich lunch that honors the Japanese tradition of slow-steamed simplicity while adhering to sugar-free, seed-oil-free standards.
A little context
Chawanmushi is a staple of Washoku, traditionally relying on the deep umami of dashi rather than sugar. We honor this by using a slow-simmered kombu and dried shiitake broth instead of processed bouillon cubes or sweetened mirin, stripping out industrial seed oils and refined sugars that often appear in modern adaptations.
The longevity story
This dish leverages the bioavailability of pasture-raised eggs for high-quality choline and lutein, essential for brain and eye health. Kombu provides iodine for thyroid function, while shiitake mushrooms offer beta-glucans that support immune resilience. The absence of refined sugar and seed oils keeps inflammation low, making this a nutrient-dense, polyphenol-rich meal.
Method
- 01
Prepare the Dashi
Combine 500 ml water, kombu, and dried shiitake in a pot. Soak for 30 minutes, then heat gently over low-medium heat. As soon as small bubbles appear at the edge (approx 80°C/175°F), remove kombu and mushrooms. Do not boil.
- 02
Strain and Cool
Strain the dashi through a fine mesh sieve into a heat-proof jug. Allow it to cool to room temperature (approx 40°C/105°F) before mixing with eggs to prevent curdling.
- 03
Whisk the Eggs
In a bowl, lightly whisk the pasture-raised eggs just enough to blend yolks and whites. Do not over-whisk to avoid foam. Add tamari and sea salt to the eggs and mix gently.
- 04
Combine and Strain
Pour the cooled dashi into the egg mixture slowly. Stir gently. Pass the mixture through a fine mesh sieve into a jug to remove chalaza and air bubbles for a smooth texture.
- 05
Assemble Cups
Place 2-3 slices of fresh shiitake into each of the 4 cups. Pour the egg-dashi mixture through a sieve into the cups, filling them 3/4 full to allow for expansion.
- 06
Steam
Cover cups with foil or small plates. Place in a steamer over simmering water (not boiling). Steam on low heat for 15-20 minutes until the center is set but still slightly jiggly.
- 07
Garnish and Serve
Remove from heat and let rest for 2 minutes. Top with chopped mitsuba immediately before serving to preserve its fresh aroma.
Nutrition facts
Per serving · 1 of 4- — Saturated
- 0 g
- — Polyunsaturated
- 0 g
- Carbohydrates
- 31 g
- — Fiber
- 5 g
- — Sugars
- 1 g
- Cholesterol
- 0 mg
- Sodium
- 216 mg
- Potassium
- 577 mg
Estimated from USDA FoodData Central for matched ingredients (50% ingredient coverage). Values vary with brand, preparation, and exact measurements.
Pro tips
- ✦Temperature control is critical: if the dashi is too hot, you will scramble the eggs in the bowl.
- ✦Always strain the custard mixture; skipping this step results in a textured, rather than silken, finish.
- ✦Source organic mitsuba or Italian parsley with deep green, unblemished leaves for maximum nutrient density.
- ✦Keep the steamer water at a gentle simmer; boiling water will create holes in the custard surface.
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Substitutions
- mitsuba → Italian parsley + chives (mimics the fresh, herbal note of mitsuba)
- fresh shiitake → fresh enoki or maitake mushrooms (adjust cooking time slightly for thinner mushrooms)
Storage
Refrigerate in airtight glass container for up to 2 days. Best served fresh; texture firms up when cold.
What to serve with it
- hot sencha green tea
- small side of pickled daikon
- warm miso soup with tofu
FAQ
Can I use katsuobushi (bonito flakes) instead of dried shiitake?+
Yes, traditional dashi uses bonito. For this version, we use dried shiitake to keep it vegetarian and avoid potential heavy metals in some fish stocks, though wild-caught bonito is acceptable if pescatarian.
Why did my custard turn out bubbly?+
This usually happens if the water was boiling too hard during steaming or if you didn't strain the egg mixture to remove air bubbles.
Is tamari safe for this recipe?+
Yes, provided you choose a gluten-free, sugar-free version. Traditional shoyu often contains wheat and sometimes added sugar.
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