Chicken Madras

• 2 tbsp vegetable oil
• 2 tsp brown mustard seeds
• 1 large onion, finely chopped
• 700 g boneless chicken thighs
• 3 cloves of garlic, thinly sliced
• 1 heaped tbsp grated fresh ginger
• 2-4 small green chillies, left whole
• 20 curry leaves
• 1-2 tsp chilli powder
• 1 ½ tbsp garam masala
• 1 x 400g can tomatoes, blended until smooth
• a pinch of sugar
• 50 g tamarind paste (or use the juice from 1 lemon)

For the rice​

• 300 g...