Devilled Tuna - Peter Kuruvita

Ingredients

• 300 g tuna fillet, cut into bite-size pieces
• 1 tsp chilli powder
• 1 sprig curry leaves, plus extra to serve
• 1 lime, juiced
• 2 tbsp oil
• 1 onion, peeled, quartered
• 3 garlic cloves, peeled, finely chopped
• 2 leeks, washed, chopped
• 3 banana chillies, chopped
• 2 long red chillies, finely chopped, plus extra to serve
• 2 green chillies, finely chopped, plus extra to serve
• 3 tbsp tomato sauce
• 3 tbsp vinegar