40g/1陆oz root ginger, finely grated
250g/9oz small seedless red grapes
12 small shallots, peeled
1 tbsp chopped tarragon
1陆 tbsp maple syrup
80g/2戮oz white miso paste
1 tbsp sunflower oil
6 tbsp cider vinegar
125驳/4陆辞锄 walnuts, broken
80g/2戮oz unsalted butter
8-12 free-range chicken thighs, boned and skin left on
4 tbsp mirin
200ml/7fl oz white wine