Ingredients:
2 cups - pineapple juice
1 tbsp - cornstarch
2 tbsp - light soya sauce
1 1/2 tbsp - white vinegar
2 - garlic cloves, crushed
3 tbsp - minced fresh ginger
1 1/4 pounds - raw firm fish (surmai)
4 cups - fresh pineapple in large chunks (or substitute canned pineapple chunks)
1 - large red onion, cut in wedges