Charred Romanesco Roulade with Miso-Poached Oyster Mushrooms & Kombu‑Miso Velouté

This is a Michelin-style vegetable main that feels celebratory yet unfussy. The dish pairs three textures — a tender, almost pasta-like romanesco sheet; silky, miso‑poached oyster mushrooms; and a crunchy, spicy-sweet hazelnut crumble. The secret twist is a thin, smoke-infused kombu‑miso velouté emulsified with a warm brown-butter beurre monté that coats the roulade like velvet and adds an astonish­ing umami smoke lift without overpowering the vegetables.

Serves: 4
Active time: 1 hour 10 minutes
Hands-off time: 40 minutes (chilling/set time)

Why this works

• Romanesco’s fractal texture becomes surprisingly pliable when charred, steamed, and pressed — it makes an elegant, savory “pasta” sheet.
• Miso‑poached oyster mushrooms deliver meaty, silky body without meat.
• The kombu‑miso velouté, finished like a beurre monté, introduces a warm, smoky-salty richness that is the dish’s umami spine.
• Togarashi-candied hazelnuts provide spark and contrast — the plate sings when texture and temperature clash gently.

Ingredients

For the romanesco sheets

• 2 medium romanesco heads (about 900 g total), trimmed of core and large florets reserved
• 2 tbsp neutral oil (grapeseed or avocado)
• Salt

For the miso-poached oyster mushrooms

• 400 g oyster mushrooms, gently pulled into clusters
• 500 ml light vegetable stock
• 2 tbsp white miso
• 1 tbsp mirin
• 1 tsp soy sauce
• 1 small clove garlic, smashed
• 1 tsp toasted sesame oil

For the kombu‑miso velouté (the secret smoke twist)

• 400 ml light vegetable stock
• 1 small piece kombu (5–6 cm)
• 1 small shallot, minced
• 1 tbsp unsalted butter
• 1 tbsp white miso
• 50 ml dry white wine or sake
• 75 g unsalted butter, cold, diced (for beurre monté finish)
• 1 tsp neutral oil
• 1 small pinch smoked paprika (or smoked salt, if preferred)

For the togarashi-candied hazelnuts & finishing

• 75 g hazelnuts, toasted and coarsely chopped
• 2 tbsp sugar
• 1 tsp light soy sauce
• 1/2 tsp togarashi (Japanese seven-spice)
• 40 g microgreens (pea tendrils, baby mizuna)
• 1 lemon, zested
• Extra virgin olive oil for drizzling

Equipment & special technique notes

• A wide, rimmed sheet pan and a second flat pan for pressing (or another heavy pan).
• A mandoline or very sharp knife to slice thin romanesco sheets.
• A fine mesh sieve for velouté.
• A smoking gun is optional if you want an extra smoke finish, but the velouté gets a smoke note from smoked paprika and kombu—no smoking gun required.

Method

1) Prep the romanesco sheets (30 minutes + chilling)

1. Preheat oven to 220°C (425°F).
2. Break romanesco into very thin slices using a mandoline set to 3–4 mm or carefully slice with a sharp knife — aim for flat sheets that are large enough to overlap into rectangles about 20 x 12 cm. You’ll likely need to piece them together; that’s fine. Reserve small florets for garnish.
3. Toss the slices lightly in oil and a pinch of salt. Char on a hot cast-iron or stainless steel pan, 1–2 minutes per side, until you see deep golden-brown spots and a little blistering — this develops smoky flavor and softens the vegetal fibers. Work in batches.
4. Arrange charred slices overlapping on a rimmed sheet pan to form four rectangles. Cover each with parchment and press with a second sheet pan (or a heavy baking tray) to flatten while cooling. Chill in the fridge for at least 20 minutes to set the sheet.

2) Miso‑poached oyster mushrooms (15 minutes)

1. In a saucepan, combine vegetable stock, miso, mirin, soy sauce, smashed garlic, and sesame oil. Bring just to a simmer and whisk to dissolve miso.
2. Add oyster mushroom clusters, poach gently at a bare simmer for 5–7 minutes until tender but still holding shape. Remove with slotted spoon and cool on a tray. Reserve 150 ml of poaching liquid, strain and keep.

3) Kombu‑miso velouté (20 minutes) — the secret twist

1. In a small saucepan, sweat minced shallot in 1 tbsp butter over medium-low heat until translucent. Deglaze with wine or sake; reduce by half.
2. Add vegetable stock, kombu, and the reserved 150 ml miso-poaching liquid. Simmer gently 8–10 minutes to marry flavors; remove kombu and blend the mixture smooth with an immersion blender.
3. Pass through a fine sieve into a clean pan. Warm over low heat and whisk in 1 tbsp white miso. Keep the velouté at a bare simmer — do not boil.
4. Off heat, gradually whisk in the cold diced butter piece by piece to create a warm beurre monté emulsion, then return briefly to the lowest heat to stabilize. Stir in 1 tsp neutral oil and a tiny pinch of smoked paprika for a whisper of smoke. Taste and correct for salt — this sauce should be silky, slightly smoky, and umami-rich. Keep warm (do not exceed 60–65°C).

4) Togarashi-candied hazelnuts (10 minutes)

1. In a small skillet, melt sugar over medium until caramelized to a light amber. Stir in soy sauce, then quickly toss in chopped hazelnuts until coated. Turn out onto parchment, sprinkle togarashi evenly, and let cool. Break into clusters.

5) Assemble roulades (10–15 minutes)

1. Lay a chilled romanesco rectangle on a sheet of parchment. Place a line of miso-poached oyster mushrooms down the center, leaving 2 cm free at the edges. Spoon a little warmed poaching liquid on the mushrooms to keep them glossy.
2. Gently roll the romanesco around the mushroom line into a snug roulade, using the parchment to guide and tighten. Trim ends cleanly. Repeat to make four roulades. If any seam feels loose, brush a tiny amount of the warm velouté along it to seal.
3. Quick warm method: briefly reheat roulades in a 160°C (325°F) oven for 4–6 minutes to take the chill off, or serve at room temperature.

6) Plating

1. Spoon a streak of warm kombu‑miso velouté across each plate. Place a roulade on the streak.
2. Scatter togarashi-candied hazelnuts and reserved charred florets artfully. Dot microgreens, a few lemon zests, and finish with a drizzle of extra virgin olive oil and a few drops of the velouté around the plate.
3. Serve immediately while the velouté is silky warm.

Make-ahead & reheating

• Romanesco sheets can be charred and chilled a day ahead, wrapped well.
• Mushrooms poached and kept in their poaching liquid will keep 2 days refrigerated. Warm gently before assembly.
• Kombu‑miso velouté is best finished with the beurre monté just before serving; you can make the base and reheat gently, then emulsify with cold butter per directions.

Variations & chef’s notes

• For a non-vegan but lighter protein option, substitute the oyster mushrooms with thin slices of seared scallop or a strip of lightly smoked trout.
• If you have a smoking gun, a 10–15 second wood-smoke pass over the finished roulade adds theatrical aroma; do this sparingly so the dish remains balanced.
• The secret twist: finishing the kombu‑miso velouté as a warm beurre monté (instead of a cold cream reduction) gives a glossy, clingy sauce that coats the romanesco like a velvet veil — it amplifies umami and lets the charred vegetal sweetness sing without heaviness.

Pairing suggestions

• A minerally, citrus-forward white such as Albariño or unoaked Vermentino balances the dish.
• For a non-alcoholic option, serve chilled yuzu soda or a fizzy apple-verjus with a strip of kombu in the glass for umami continuity.

Final flourish

Right before service, scatter a couple of tiny hazelnut clusters and a whisper of lemon zest over the roulade. The combination of char, miso, warm beurre monté and the crunchy, spicy hazelnut is what makes this dish memorable — a vegetal centerpiece that could headline a tasting menu.

Enjoy the balance of smoke, umami and bright spice — this is a vegetable dish built for praise.