small handful chestnut mushrooms
2 tsp ground coriander
500g/1lb 2oz floury potatoes, such as Maris Pipers, peeled and cut into 5–6cm/2–2½in chunks
50g/1¾oz baked beans
100g/3½oz plain flour, plus extra for dusting
2 tsp ground black pepper
250g/9oz breadcrumbs
2 tsp ground nutmeg
1 tbsp vegetable oil
1 slice white bread
2 tbsp butter, softened
1 free-range egg
500g/1lb 2oz beef mince, at least 20% fat (ask your butcher)
1 slice black pudding
1 slice haggis (shop-bought or homemade)
500g/1lb 2oz pork mince, at least 20% fat (ask your butcher)
1 slice lorne sausage (see above)