Overview

This is a restaurant-worthy main that pairs firm, meaty monkfish with an unexpected citrus-umami finish. The secret twist is a warm, emulsified brown-butter glaze blended with finely minced pickled kumquat—when spooned over the hot fish it sizzles and releases a volatile, tangy perfume that lifts the whole dish. Textures come from a silky charred sunchoke purée and crisp fennel shards.

• Serves: 4
• Active time: 40 minutes
• Total time: 1 hour 20 minutes (includes short pickling)

Why this works — the secret twist

The pickled kumquat introduces bright, rind-forward acidity and floral bitterness. When reduced into a syrup and whisked into hot brown butter off the heat, the citrus oils emulsify with the butterfat, creating a glossy glaze that clings to the monkfish. The high-heat finish liberates those aromatic oils, giving a searing burst of fragrance and a perfect balance of richness and piquancy—this is the element that makes the dish sing.

Ingredients

For the monkfish and finish

• 600–700 g monkfish tail, trimmed and portioned into 4 steaks (about 150–180 g each)
• 2 tsp fine sea salt, divided
• 1 tsp freshly ground black pepper
• 2 tbsp neutral oil (grapeseed or avocado)
• 80 g unsalted butter (for brown butter base)
• 1 tbsp light soy sauce or tamari
• 1 tsp fish sauce (optional, for deeper umami)
• 1 tbsp honey or maple syrup

For the quick-pickled kumquats (secret flavor base)

• 120 g kumquats (about 8–10), halved and seeds removed
• 60 ml rice vinegar or champagne vinegar
• 40 g granulated sugar
• 40 ml water
• 2 g flaky sea salt (about 1/2 tsp)
• 1 small finger of ginger, peeled and sliced (optional)

For the charred sunchoke purée

• 450 g sunchokes (Jerusalem artichokes), scrubbed and roughly chopped
• 1 tbsp olive oil
• 1 small shallot, sliced
• 200 ml low-sodium chicken or vegetable stock (plus extra to adjust texture)
• 30 g unsalted butter
• Salt and white pepper to taste

For fennel shards & garnish

• 1 small fennel bulb, trimmed very thin (use a mandoline if available)
• 2 tbsp neutral oil
• Finishing salt (Maldon or flaky sea salt)
• Microgreens or baby fennel fronds (optional)
• Zest of 1 kumquat (very thin strips, optional)

Equipment highlights & technique notes

• Heavy skillet (cast iron preferred) for searing
• Small saucepan for pickling & reduction
• Blender or immersion blender for purée
• Baking tray for crisping fennel shards

Method

1) Quick-pickle the kumquats (start first)

1. In a small saucepan combine vinegar, sugar, water and salt. Warm over medium until sugar dissolves.
2. Add halved kumquats and ginger. Simmer gently for 3–4 minutes, then remove from heat and let sit, covered, for at least 30 minutes. Reserve both kumquats and pickling liquid.

2) Char and roast the sunchokes

1. Preheat oven to 220°C. Toss sunchokes with olive oil, salt and pepper on a tray. Roast for 20–25 minutes until deeply golden and tender.
2. In a small pan sweat the shallot in 1 tbsp butter until translucent. Add roasted sunchokes and stock; simmer 3–4 minutes. Purée until silky, passing through a fine sieve if you want a satin finish. Stir in the remaining butter, adjust seasoning with salt and white pepper. Keep warm.

3) Make the pickled-kumquat butter glaze (the secret twist in motion)

1. Remove kumquats from pickling liquid. Finely mince 80 g of the pickled kumquats (reserve any remaining for garnish). Strain the pickling liquid and reserve 30–40 ml.
2. In a small saucepan, reduce the reserved pickling liquid with the honey over medium until syrupy—about 3–5 minutes. Add the minced kumquat and cook another 1–2 minutes to concentrate flavor. Set aside.
3. In a separate skillet melt the butter over medium heat and let it foam; watch closely until the solids brown and smell nutty—this is browned butter (be careful not to burn). Remove from heat.
4. Off the heat, whisk the reduced kumquat syrup and minced kumquat into the brown butter until emulsified. Add soy sauce, fish sauce (if using) and taste—adjust with a touch more honey or salt if needed. This warm butter glaze should be glossy and scented with kumquat oil.

4) Crisp fennel shards

1. Toss sliced fennel with neutral oil and a pinch of salt. Spread in a single layer on a baking tray and bake at 200°C for 8–12 minutes until edges are crisp and amber—watch closely. These will crisp up further as they cool.

5) Sear and finish the monkfish

1. Pat fish dry and season with half the salt and pepper. Heat a heavy skillet over high heat until smoking hot. Add oil.
2. Sear monkfish 2–3 minutes per side until a golden crust forms. Lower heat to medium and spoon the warm pickled-kumquat brown butter over the fish continuously, basting, for 1–2 minutes. Transfer skillet to the oven for 3–5 minutes if the pieces are thicker, until internal temperature reaches 54–56°C for tender, fully opaque fish. Finish with the remaining salt.

6) Plate

1. Spoon a generous smear of warm sunchoke purée onto each plate. Place a monkfish steak on top.
2. Spoon additional pickled-kumquat brown butter over the fish—the butter should sizzle and perfume the plate. Arrange crisp fennel shards, a few reserved pickled kumquat halves, and microgreens. Finish with a light scatter of kumquat zest and flaky salt.

Timing & workflow tips

• Start pickling the kumquats first; the quick-pickle only needs 30–40 minutes but the flavor improves slightly with time.
• Roast sunchokes while pickling. Brown the butter and reduce the pickling liquid right before searing the fish so the glaze is warm and emulsified when you need it.
• The brown-butter-kumquat glaze must be whisked off the heat to keep the emulsion stable; reserve a warm spot for it near the stove.

Variations & substitutions

• Fish swap: halibut, cod loin or black cod will work if monkfish is unavailable. Reduce oven time for thinner fillets.
• Citrus swap: small calamondins or thin-skinned mandarins may be used, but kumquats give a unique rind-forward bite.
• Vegan option: replace monkfish with thick king oyster mushroom steaks; use vegan butter and mushroom fish sauce alternative and finish similarly.

Make-ahead & storage

• Pickled kumquats keep refrigerated for up to 1 week.
• Sunchoke purée keeps 2 days refrigerated; gently reheat with a splash of stock.
• The kumquat brown-butter glaze is best used same day—reheat very gently and whisk to re-emulsify.

Final notes — how to get the most from the secret twist

• Use room-temperature butter and warm reduction when emulsifying; hot butter will break the emulsion and cold butter won’t fuse properly.
• Do not pour the glaze cold onto hot fish—heat the glaze slightly so it sizzles on contact and releases the kumquat oils. That audible sizzle is part of the theatrical aroma and taste experience.
• Finish with a light scatter of flaky salt and fresh kumquat zest for brightness—these tiny touches sharpen the flavour and make the dish sing.

Enjoy a dish that looks composed and refined yet hinges on one playful, fragrant secret: the pickled-kumquat brown-butter glaze that transforms seared monkfish into something vividly new.