Smoked mackerel with orange, watercress & potato salad

• sherry↗1 tbsp tbsp

  or red wine vinegar

• Dijon mustard↗1 tsp tsp
• extra-virgin olive oil↗3 tbsp tbsp
• medium potato↗2

  such as Maris Piper or Desirée, cut into cubes

• ½ small red onion

  thinly sliced

• large orange↗1
• bag watercress↗100g g
• 2 peppered smoked mackerel↗

  fillets, skin removed

Step-by-step instructions

1. 1

   Whisk together the sherry or wine vinegar, mustard and oil with some seasoning. Boil the potatoes in salted water until easily pierced with a knife, about 10 mins. Toss in a bowl with threequarters of the dressing and onion slices, then leave to cool a little.

2. 2

   Cut the peel and pith from the orange, then cut into thick slices. Toss the watercress into the salad, then divide between 2 plates and top with the oranges, fish and the remaining dressing.