Jersey Royals arrive in mid-April and, in a good year, hit their peak in May before the season closes in June. At their best — small, waxy, their papery skins barely worth removing, carrying a distinctive mineral quality from the seaweed-fertilised soil they grow in — they need almost nothing done to them. This plate is built around that quality rather than against it.
Brown crab is one of the most underused ingredients in the British kitchen. White claw meat is prized and expensive; the brown meat — richer, more intense, more deeply of the sea — is frequently overlooked or relegated to a sauce component. Here it is the point of the dish. Seasoned with lemon, Dijon and a small amount of Worcestershire, it carries a complexity that pairs precisely with the mineral sweetness of the potato.
The chive oil is optional but worth making. It takes ten minutes, holds for two days, and elevates the plate from composed salad to something you'd send out of a serious kitchen.
Serves 4 as a starter
Ingredients
For the potatoes
- 600g Jersey Royal new potatoes, smallest available
- Sea salt
- 1 tbsp unsalted butter
For the dressed brown crab
- 250g fresh brown crab meat (from a good fishmonger, or the brown meat from a dressed crab)
- 1 tsp Dijon mustard
- 1 tsp Worcestershire sauce
- 1 tbsp lemon juice, freshly squeezed
- Flaked sea salt and white pepper to taste
For the crème fraîche
- 150ml full-fat crème fraîche
- Zest of half a lemon
- Pinch of fine salt
For the chive oil
- 1 large bunch of chives (approximately 30g)
- 100ml neutral oil (sunflower or grapeseed)
- Pinch of fine salt
To finish
- Micro herbs or additional chive tips
- Extra lemon wedge for squeezing at the table
Method
1. Make the chive oil
Bring a small pan of well-salted water to the boil. Blanch the chives for 20 seconds, then refresh immediately in ice water and squeeze dry in a clean cloth — the drier the better. Blend with the oil and a pinch of salt at high speed for 2 minutes. Strain through a fine sieve or a piece of muslin into a small jug; do not press the solids through or the oil will cloud. The result should be vivid, clean green. Set aside. The oil can be made a day ahead and refrigerated.
2. Cook the potatoes
Wash the Jersey Royals but do not peel them — the skins at this point in the season are barely there and carry flavour. Bring a large pan of generously salted water to the boil. Add the potatoes and cook until just tender throughout, approximately 12 to 15 minutes depending on size; they should yield easily to the tip of a knife without breaking apart. Drain and dress immediately with the butter and a pinch of flaked salt while still hot. Set aside somewhere warm — the potatoes should be served warm, not piping hot.
3. Dress the crab
Combine the brown crab meat with the Dijon, Worcestershire and lemon juice. Mix gently with a fork — you want to combine without overworking the crab into a paste. Season carefully with white pepper and flaked salt, bearing in mind that the Worcestershire will already be contributing salt and savour. Taste and adjust. The dressed crab should be deeply savoury, slightly sharp with the lemon, and distinctly, unapologetically of the sea.
4. Season the crème fraîche
Stir the lemon zest through the crème fraîche with a pinch of fine salt. This takes thirty seconds and lifts the crème fraîche considerably — the lemon note cuts through the richness in a way that matters against the crab.
5. Plate and finish
Arrange the warm potatoes across four plates or a sharing platter, halving any larger ones to ensure the cut face shows. Place a generous spoonful of the dressed brown crab alongside — not on top of — the potatoes, so both elements are clearly visible and accessible. Add a spoonful of the lemon crème fraîche to each plate. Drizzle the chive oil around and over the plate with a light hand. Finish with a scatter of micro herbs or chive tips and serve immediately with a lemon wedge alongside.
Notes
- If fresh brown crab meat from a fishmonger is unavailable, a dressed crab provides both brown and white meat. Use the brown meat here and reserve the white for a crab on toast or pasta the following day — it will not keep beyond 24 hours once the crab is dressed.
- Jersey Royals at the peak of the season genuinely do not benefit from being served cold. If making elements ahead, warm the potatoes briefly in a small knob of butter in a covered pan before plating.
- The chive oil holds well for two days in the refrigerator and can be repurposed: excellent with poached eggs, white fish, or whisked into a vinaigrette for a green salad.
- The dish works equally well as a shared starter arranged on one large plate — in which case increase the quantities by a third for generous portions.