King Prawn and Tomato Curry

Ingredients

• 2 tbsp sunflower oil
• 1 large onion , chopped
• large piece ginger , crushed
• 4 garlic cloves, crushed
• ½ red chilli, finely chopped
• 1 tsp golden caster sugar
• 1 tsp black mustard seeds
• 1 tsp ground cumin
• 1 tsp ground coriander
• 1 tsp turmeric
• 1 tbsp garam masala
• 2 tsp malt vinegar
• 400g can chopped tomato
• 400g raw king prawns
• small bunch coriander, chopped
• basmati rice, yogurt, mango chutney and Carrot & cumin salad, to serve