Splendidly spicy beef burger – Mr Todiwala's

Ingredients

• 1 tbsp sunflower oil or rapeseed oil, plus extra for brushing
• 1 large onion, finely chopped
• 2cm/¾in piece fresh root ginger, very finely chopped or ground to a paste
• 2 garlic cloves, very finely chopped or ground to a paste
• 1-2 green bird's-eye chillies, seeds removed, very finely chopped
• 800g/1lb 14oz lean beef mince
• pinch salt
• 2 tsp ground cumin
• 3 tsp ground coriander
• ½ tsp ground turmeric (optional)
• 1-2 tsp mild chilli powder, to taste
• 2 tbsp chopped fresh coriander
• 1kg/2lb 4oz potatoes, unpeeled, cut into wedges
• 1 tbsp rapeseed oil or vegetable oil
• 2 tsp mild red chilli powder
• 1 tsp freshly ground white pepper
• 2 tsp salt
• 1 heaped tsp mango powder (optional)
• 4-6 burger buns
• ketchup