Soy tuna with wasabi mash

• soy sauce↗3 tbsp tbsp
• rice wine vinegar↗1 tbsp tbsp
• caster sugar↗1 tbsp tbsp
• tuna steaks↗2

  each about 140g/5oz

• potato↗500g g
• semi-skimmed milk↗100ml ml
• wasabi↗2 tsp tsp

  paste (see Know-how)

• spring onion↗1

  finely sliced

• frozen broad bean

  or soya beans, to serve

Step-by-step instructions

1. 1

   Mix together the soy sauce, vinegar and sugar. Pour over the tuna and marinate for at least 20 mins or up to 2 hrs in the fridge. Place the potatoes in a pan of lightly salted boiling water, then cook for 10-15 mins until soft. Drain well. Heat the milk in the pan and mix in the wasabi, return the potatoes to the pan, then mash until smooth. Stir through the spring onion and keep warm.

2. 2

   Heat a non-stick griddle pan until smoking hot. Remove the tuna from the marinade. Cook on the griddle for 2-3 mins each side until seared on the outside, but still pink inside. Cook the broad or soy beans according to pack instructions, then serve alongside the tuna and mash.