Herring with sour cream

• 2-3 lightly salted herrings
• 250 ml (8 fl oz) milk
• 1

Clean and fillet the herrings and soak for 10-12 hours in the milk. Cut into 1 cm (½ in) pieces; spread in an even layer on a plate. Slice the onion into rings and spread over the herring. Pour thick sour cream over the top and sprinkle with the dill. Serve with hot boiled potatoes.