500g/1lb 2oz King Edward potatoes, or similar floury potatoes, peeled, cut into equal-sized pieces
400g/14oz Chantenay carrots, or similar small carrots
2 garlic cloves, peeled, finely chopped
300g/10陆oz baby onions, peeled, left whole
400g/14oz purple sprouting broccoli
4 sprigs fresh rosemary
25g/1oz plain flour
400ml/14fl oz beef stock
salt and freshly ground black pepper
1 tbsp caster sugar
2 tbsp olive oil
70驳/2陆辞锄 butter
50g/2oz butter
25g/1oz butter
100ml/3陆oz full-fat milk
1.5kg/3lb 4oz boneless shoulder of lamb
400ml/14fl oz red wine