Chilli coriander steamed fish

Ingredients

• 1 large piece (about 400g) kurau/threadfin
• Coriander leaves for garnishing
• 1/4 cucumber or zucchini - sliced into small pieces (optional)
• For the sauce/gravy
• 1 stalk coriander (cut off the roots)
• 1 stalk spring onion
• 1 inch ginger
• 5 garlic
• 1-2 green chilies
• 1-2 red chilies
• 1 lime - extract juice
• 1 tsp sugar
• Salt for taste
• ** Blend/ground with 1/4 cup of water (add more water if you like)