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Rack of lamb with potato and celeriac dauphinoise
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2 racks of lamb
2 rosemary sprigs
2 garlic cloves, sliced
2 tsp olive oil
400ml fresh chicken stock
1 tsp lemon juice
green beans, to serve
25g unsalted butter, at room temperature, plus extra for greasing
1 onion, finely sliced
2 garlic cloves, finely sliced
500ml double cream
1 tsp Dijon mustard
1½ tsp salt
400g celeriac, peeled
600g potatoes, such as maris pipers, peeled
1 dried habanero chilli (with seeds)
½ ancho chilli (with seeds)
2 tbsp black peppercorns
2 tbsp white peppercorns
2 tsp Sichuan peppercorns
1 tbsp salt
½ tbsp unsalted butter, softened
½ tbsp plain flour
1. Start with the dauphinoise. Preheat the oven to 180˚C, gas mark 4. Butter a 30cm x 20cm gratin dish. Melt the butter in a large pan, add the onion and garlic then cook over a medium heat until softened. Add the cream and mustard, season with the salt and plenty of black pepper, then simmer for 5 minutes. Take the pan off the heat.
2. Cut the celeriac and potatoes into thin slices. Mix them with the cream mixture in the pan, then pour into the gratin dish and flatten the top. Bake for 1 hour 15 minutes-1 hour 30 minutes until completely tender to the point of a knife.
3. Turn the oven up to 220˚C, gas mark 7. To make the peppermix, whizz all the ingredients together in a spice grinder (or whizz the chillies in a food processor before tipping into a pestle and mortar with the peppercorns and salt). Season the lamb with 1 tsp peppermix (store the rest in a glass jar for up to 2 weeks). Put the rosemary, garlic and oil in a small roasting tin and sit the racks of lamb on top. Roast the lamb for 15-20 minutes, then remove from the oven, transfer to a warm plate and cover with foil. Leave to rest for 10 minutes. Turn the oven down to 180˚C, gas mark 4 and put the dauphinoise back in to heat through.
4. Set the roasting tin on the hob, add the stock and lemon juice and heat until reduced by half. Make the beurre manié by blending the softened butter and plain flour together to form a smooth paste. Whisk into the stock while it is still bubbling. Taste and check for seasoning, then pass the gravy through a sieve. Cut the racks into cutlets and serve with the gravy, dauphinoise and some green beans.
This recipe first appeared in Waitrose & Partners Food, December 2019 issue. Download the Waitrose & Partners Food app for the full issue
Typical values per serving:
This recipe was first published in Thu Nov 28 15:18:04 GMT 2019.
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