2 tbsp finely chopped fresh chives
1 tsp ground coriander
2 tbsp creamed horseradish
500g/1lb 2oz new potatoes, cooked in their skins
2 shallots, finely sliced
watercress leaves, to serve
陆 tsp English mustard
few drops Tabasco
sea salt and freshly ground black pepper
1 tbsp golden caster sugar
1 tsp cayenne pepper
2 tbsp olive oil
olive oil
2 tsp red wine vinegar
2 tsp sweet smoked paprika
100g/4oz butter, softened to room temperature
2 tbsp soured cream
8 mackerel fillets