100g/3陆oz leftover baked, boiled or raw potatoes, such as King Edward or Maris Piper, grated
1 beetroot, peeled and cut into long, thin matchsticks
2 spring onions, thinly sliced
pinch allspice
salt and freshly ground black pepper
陆 tsp caraway seeds
1 tsp caster sugar
50驳/1戮辞锄 self-raising flour
sunflower oil , for deep frying
2 tbsp cider vinegar
1 egg, beaten
50g hard cheese, such as parmesan, finely grated
3陆 tbsp cold beer or water