Basque Pork Belly Pintxos with Sherry Vinegar & Quince Glaze

In Madrid and many regions of Spain you take your pick of the tantalising plates packed along the bar to devour with an aperitif. Pintxos, a Basque specialty, translates as ‘spike’ or skewer. The flavour of Iberian pork is off the charts because of the animals’ acorn diet: you can taste a sweet nuttiness in the meat that’s unforgettable. I’ve tried many methods of making crisp pork belly, but getting the crackling crisp was always a gamble until one of my fellow teachers at Leiths School of