1 tbsp basil, chopped
1 clove garlic, roughly chopped
陆 lemon, zest and juice only
2 handfuls of new potatoes, par-boiled until al dente then cooled
2 tbsp flatleaf parsley, chopped
4 anchovy fillets
1 tbsp capers, roughly chopped
salt and freshly ground black pepper, to taste
salt and freshly ground black pepper
5 tbsp Italian olive oil
90ml/3fl oz olive oil
2 x 250g/9oz fresh tuna steaks