Instructions

STEP 1

Cook the potatoes in boiling salted water until just tender.

STEP 2

Meanwhile, cook the onion in 1 tbsp olive oil until soft, then stir in the harissa and stock and bring to a simmer. Halve the cooked potatoes and add to the stew with the cherry tomatoes. Simmer for 10 minutes until the tomatoes start to break down a little.

STEP 3

Oil and season the tuna then griddle for 2 minutes on each side. Stir the coriander into the stew then spoon into shallow bowls. Sit the fish on top and sprinkle with more coriander to serve.