125g/4½oz frozen sliced leeks (or 1 medium leek, trimmed and finely sliced)
100g/3½oz frozen chopped onion (or 1 medium onion, chopped)
handful roughly chopped fresh flatleaf parsley leaves, to garnish (optional)
2 medium potatoes (approximately 200g/7oz each), peeled, cut into roughly 2cm/¾in cubes
100g/3½oz frozen sweetcorn kernels
20²µ/¾´Ç³ú plain flour
freshly ground black pepper
¼ tsp salt
1 tbsp vegetable or sunflower oil
25g/1oz butter
4 large free-range eggs (optional)
400ml/14fl oz milk
4 x 90g/3¼oz frozen smoked haddock fillets