In a pestle and mortar, pound the allspice and the peppercorns to a powder, then add to a food processor along with the cinnamon, nutmeg, thyme, spring onions, garlic and chilli. Blend to a paste, then stir in the sugar, soy sauce and lime juice. Pour the mixture into a large bowl, then add the pork and rub the marinade into the meat along with a little salt. Cover and leave to marinate for at least 4 hours, or overnight.

When you are ready to roast the potatoes, preheat the oven to 180°C/350°F/gas 4. Pour a very generous glug of oil into a shallow baking tray so that it’s about ½cm (¼in) deep, then place in the oven for 5 minutes to heat up. When the oil’s hot, add the sweet potatoes, toss quickly, and roast for 12-15 minutes, until golden and cooked through.

Meanwhile, heat a barbecue or griddle pan so that it’s nice and hot, but not searing. Cook over a medium heat for 4 minutes each side. Leave to rest for a couple of minutes.

Remove the potatoes from the oven, stir 2 teaspoonfuls of salt through the bashed-up thyme and sprinkle over the hot potatoes. Serve with the pork chops, putting a wedge of lime on each plate.

Preparation time: 20 minutes, plus 4 hours’ marinating. Cook time: 20-25 minutes.