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½ small red onion, very finely chopped
400g of sushi-grade albacore or yellow fin tuna, cut into 1cm dice
1 serrano or jalepeño chilli, deseeded & finely chopped
1 tbsp of capers, rinsed & chopped
1 avocado, peeled, stone removed & cut into 1cm dice
Juice of 1-2 limes
Sea salt & freshly ground black pepper
2 tbsp of extra-virgin olive oil
Handful of coriander leaves, chopped
Place the red onion in a small bowl and cover with cold water. Soak for 5 minutes to remove some of the harsh flavour. Drain well.
In a medium bowl, mix the tuna with the onion, chilli, capers, avocado and lime juice (to taste). Season well, drizzle over the extra-virgin olive oil and toss with the coriander. Serve immediately.