½ bunch chives, finely chopped
1 garlic clove, crushed
1 tbsp finely chopped ginger
1 lemon, juice only
200g/7oz baby leaf spinach
salt and freshly ground black pepper
dash olive oil
115g jar green peppercorns in brine, drained and roughly chopped
1 tsp sesame oil
1–2 tbsp soy sauce
100ml/3½fl oz vegetable oil
2 x 100g/3½oz fresh tuna steaks