Sweet & sour mackerel recipe | Good Food

Ingredients

• 4 fresh mackerel fillets, pin boned, each cut into 4 large pieces
• 2 tbsp plain flour
• 400-500ml/14-18fl oz sunflower oil
• 1 spring onion finely sliced
• 2 tsp dark soy sauce
• 1 tbsp rice vinegar
• 3 tbsp tomato ketchup
• 1 tsp Thai fish sauce
• 2 tbsp sunflower oil
• 1 small onion cut into six wedges
• 2 garlic cloves very finely chopped
• thumb-size piece fresh root ginger finely chopped
• 300g/10oz fresh pineapple peeled, cored and cut into rough 2cm chunks
• 1 long dried red chilli cut into 3 pieces
• 1 tsp cornflour