Foolproof spaghetti carbonara
By Danilo Cortellini From Saturday Kitchen Ingredients 400g/14oz guanciale or pancetta, rind removed, cut into 5mm/¼in slices and chopped into thick strips 2 free-range eggs, plus 4 free-range egg yolks 50g/1¾oz pecorino romano cheese, grated, plus 30g/1oz to serve 90g/3¼oz …