Fennel Roasted Chicken with Brown Butter Sherry Vinaigrette and Carrot Miso Purée

This is the plate you make when you want dinner to feel like a tasting menu without actually cooking like a restaurant. A properly rendered, golden-skinned chicken breast rests on a silky carrot-miso purée, with caramelised fennel tucked alongside and a warm brown butter and sherry vinaigrette pooled over the top. The whole thing leans French at heart but borrows umami depth from the miso — so every bite has nutty, sweet, acidic, and savoury happening at once. Everything except the final vinaigrette can be prepped ahead, which makes it a dream for entertaining.

How to roast

Start with the chicken, because the most important thing you can do for it is leave it alone. Pat the breasts completely dry with kitchen paper — any surface moisture will steam rather than sear — then season them generously with salt and pepper on all sides. Let them sit on the counter for 30 minutes. Cold chicken straight from the fridge sears unevenly and cooks into the centre slowly, and dry brining this way seasons right through the flesh. While they temper, set the oven to 200°C (400°F) and get everything else ready.

For the fennel, trim the stalks and any bruised outer layers, then stand each bulb upright and slice through the root into 2cm wedges — the root is what holds them together during roasting. Toss the wedges with olive oil (2 tablespoons), lightly crushed fennel seeds (2 teaspoons), thyme sprigs (4), smashed garlic (2 cloves), and plenty of salt and pepper. Spread them in a single layer in a roasting dish large enough to eventually hold the chicken on top. Crushing the seeds releases their oils and doubles down on the anise flavour — it's a small trick that makes the fennel taste distinctly more of itself.

Now the purée. Peel the carrots (500g) and cut them into roughly even 2cm chunks so they cook uniformly. Put them in a saucepan, cover with cold water, add a teaspoon of salt, and bring to a boil. Simmer until a knife slides through without any resistance, 18-22 minutes — undercooked carrots give you a grainy purée, so err on the side of really soft. Drain them but keep 100ml of the cooking liquid.

Transfer the hot carrots straight into a blender with the white miso (2 tablespoons), cold butter cubes (40g), rice vinegar (1 tablespoon), and 4 tablespoons of the reserved cooking liquid. Blend on high for a full minute until it's completely silky and glossy — if it's seizing or catching, add more cooking liquid a tablespoon at a time. The cold butter emulsifies into the hot carrots the way it would into a beurre blanc, giving the purée a lustrous, almost custard-like texture. Taste aggressively: it should be sweet from the carrots, deeply savoury from the miso, and finished with a quiet lift of acidity. Adjust with salt if it's flat. Keep it warm over a very low heat or in a thermos.

Back to the chicken. Heat a tablespoon of neutral oil in a large skillet over medium-high heat until it shimmers but isn't smoking. Lay the breasts skin-side down, press them lightly with a spatula for the first 30 seconds to keep the skin in contact with the pan, then leave them completely alone for 5-6 minutes. You want deep, mahogany-golden skin — pull a breast up to check at 5 minutes and give it another minute if it's still pale. Flip briefly to colour the other side for 1 minute, then transfer the breasts skin-side up onto the fennel in the roasting dish. Don't put the whole skillet in the oven — unless you know yours is oven-safe to 200°C, transfer everything to the baking dish instead.

Roast for 22-28 minutes until the thickest part of the breast reads 63°C (145°F) on a kitchen thermometer. This is the single best investment you can make in this dish — a thermometer takes all the guesswork out of it, and the difference between 63°C and 70°C is the difference between juicy and dry. Pull it out and let the chicken rest on a board for a full 10 minutes; carry- over cooking will take it up to 68°C (155°F), which is where the flesh is cooked through but still succulent. If the fennel needs more colour, slide the dish back in while the chicken rests.

Now the vinaigrette, and this is where it all comes together. Melt the butter (120g) in a small, light-coloured saucepan over medium heat — light colour matters, because you need to see the milk solids darken. Swirl the pan as it foams. You'll hear the crackling (that's water evaporating), and then the crackling will quiet down and the smell will turn unmistakably nutty, like hazelnuts and toffee. This usually takes 4-5 minutes total. Pull it off the heat the moment the solids are a deep hazelnut brown — they go from perfect to burnt in 15 seconds.

In a small bowl, whisk together the finely diced shallot, sherry vinegar (2 tablespoons), Dijon (1 teaspoon), honey (1 teaspoon), and a pinch of salt. Let it sit for 2 minutes — the acid mellows the raw bite of the shallot. Then slowly stream in the warm brown butter while whisking constantly, making sure every last scrap of those toasted milk solids gets into the bowl (scrape the pan with a rubber spatula). It won't emulsify into a tight vinaigrette like a cold one would — you want a loose, spoonable dressing that you can drizzle and pool. Fold in the parsley and chives. Taste once more: it should be bright, nutty, savoury, just sweet enough. Add a pinch more salt if it's flat.

Bonus points

• Brine the chicken first: Dissolve 50g salt and 25g sugar in 1 litre of cold water with a few fennel seeds and bay leaves. Submerge the chicken for 2-4 hours, then dry thoroughly and season as normal. The flesh seasons all the way through and stays noticeably juicier.
• Pass the purée through a tamis: After blending, push the carrot miso purée through a fine-mesh tamis or drum sieve with a plastic scraper. It takes 5 minutes and gives you that glassy, almost shiny texture you see on tasting-menu plates.
• Make a quick jus: While the chicken rests, deglaze the roasting dish with 100ml of white wine and 150ml of good chicken stock, reduce by half, and whisk in a cold knob of butter. Drizzle a little around the plate alongside the vinaigrette for a second dimension of sauce.
• Use cultured butter for the brown butter: European cultured butter (Beurre d'Isigny or Kerrygold) has a higher milk-solid content and browns into something more intensely nutty than standard butter.
• Roast the carrots instead of boiling: Toss the carrots with olive oil and roast at 200°C alongside the fennel until caramelised at the edges, about 30 minutes. Blend with a splash of warm stock instead of the cooking liquid. You trade some silkiness for a deeper, more roasted flavour.
• Crisp fennel frond garnish: Fry the reserved fennel fronds in a splash of hot oil for 10-15 seconds until they turn bright and crisp. Drain on kitchen paper, season with salt, and scatter over the plate.

Serving

This is a dish that rewards composed plating. Warm your plates first — a cold plate will dull the brown butter immediately. Swipe a generous tablespoon of the carrot-miso purée across the centre of each plate with the back of a spoon, pulling it into a smooth comma shape. Slice each rested chicken breast on a slight bias into four or five pieces and fan them over the purée, skin-side up so the crispness is on show. Tuck two or three wedges of roasted fennel alongside, then spoon the warm vinaigrette generously over the chicken and into the space around it, letting the toasted milk solids and chopped herbs settle where they fall. Finish with reserved fennel fronds and a pinch of flaky salt on the chicken skin.

For a more generous, family-style version, arrange everything on a large warm platter: the purée spread across the base, the sliced chicken on top, fennel tumbled around the edges, and the vinaigrette in a jug on the side so people can help themselves.

Serve with something simple on the side — a bitter leaf salad with lemon and olive oil, or a bowl of crusty sourdough for mopping up the sauce. For wine, reach for a mineral white Burgundy (a Saint-Aubin or Saint-Véran), an aged Chablis, or a dry Chenin Blanc from the Loire — anything with enough weight to stand up to the brown butter and enough acidity to match the sherry vinegar.