1 carrot, roughly chopped
4 garlic cloves, peeled and kept whole
1 onion, sliced into rings
10g/鈪搊z sprigs fresh thyme
3 bay leaves
salt and freshly ground black pepper
2 tbsp cornflour
1 whole nutmeg
50驳/1戮辞锄 butter, at room temperature
2 tbsp milk
2kg/4lb 8oz boneless, rolled turkey crown
200ml/7fl oz dry cider or dry white wine (use an alcohol-free version or apple juice if preferred)