“This isn’t any old roast; this is elegant slices of succulent pork and outrageous crackling sat on top of the most amazing Italian-inspired creamy sweet leeks and beans. Ask your butcher to remove the skin, but hang onto it for amazing double crackling – you want about 300g. ”
Preheat the oven to full whack (240°C/475°F/gas 9).
To make the marinade, pick the marjoram leaves into a pestle and mortar, bash to a rough paste with a pinch of sea salt, then muddle in 4 tablespoons of olive oil and 1 tablespoon of red wine vinegar.
Slice the green tops off the leeks (keep for soups or stock), then cut the white parts in half lengthways. Wash them, then chop into 3cm pieces and transfer to a shallow, snug-fitting casserole pan with the whole bulb of garlic.
Score lines in a criss-cross pattern in the pork fat at ½cm intervals across the entire length of the loin (make sure you don’t cut through to the meat). Then rub the loin with half of the marinade and place on top of the leeks. Using a small sharp knife, stab the pork skin all over, rub with a tablespoon of olive oil, sprinkle with a pinch of salt and place on a large baking tray.
Reduce the oven temp to 200°C/400°F/gas 6, place the crackling on the top shelf and the pork on the shelf beneath, then roast for 1 hour.
Meanwhile, prep the greens. Tear the cavolo nero leaves, discarding the stalks, and finely slice the Savoy cabbage, discarding any tough stalky bits as you go, then finely slice the chard, stalks and all. Cook the cabbage, cavolo nero and toughest chard leaves in a pan of boiling water over a medium heat for 3 minutes, then add the tenderest chard leaves and simmer for 1 more minute.
Tip the spinach into a colander, then drain the greens directly over it to wilt. Lay all the greens on a clean work surface to cool, then wrap in a clean tea towel and squeeze out all the excess liquid. Transfer to a board and chop everything finely. Reheat in a pan when ready to serve and dress with salt, pepper and a tablespoon of extra virgin olive oil and red wine vinegar.
Remove the pork loin and crackling from the oven and transfer to a board to rest for 30 minutes. Squeeze the roasted garlic cloves from their skins into the pan – discarding the skins as you go – then tip in the beans and chickpeas, juice and all. Place on a medium heat on the hob and gently simmer for 5 minutes, until heated through. Stir through the crème fraîche, season to taste and pour in any resting juices from the pork.
To serve, spoon the beans onto serving plates and scatter over the cooked greens. Top each plate with two slices of pork, pour over the remaining Salmoriglio sauce and break over the crackling. Serve with a glass of chilled Valpolicella.
Smash any leftover chickpeas with extra virgin olive oil and a squeeze of lemon and spread onto toast. Great as a starter.