Cullen skink – Alex's book of recipes

Ingredients

• 1 tbsp unsalted butter
• 1 medium onion, medium dice
• 400g medium potatoes (about 2), peeled and cut into 1cm cubes
• 250g smoked haddock
• 250ml whole milk
• ½ small bunch of parsley, stems removed and coarsely chopped, leaves finely chopped
• 1 bay leaf