BBC Food - Recipes - Tuna tartare with chilli, ginger and sesame

Ingredients

• 480g/1lb 1oz tuna loin (preferably yellow fin, as fresh as possible)
• 2 spring onions , thinly sliced
• 1 medium-hot red chilli , finely chopped
• 2.5cm/1in piece fresh root ginger , peeled and grated, or finely diced
• 1 tbsp clear honey
• 6 tbsp light soy sauce
• 1 lime , juice only
• 2 tbsp sesame oil
• 2 tbsp sesame seeds , toasted
• 4 slices ciabatta
• few sprigs fresh coriander , to garnish