Makhani dhal - Good Food Middle East

Ingredients

• 225g black lentils
• 2 onions, finely chopped
• 2 green chillies, deseeded and sliced
• 50g butter, plus a small chunk
• 1 tbsp grated fresh root ginger
• 3 garlic cloves, thinly sliced
• 1 tsp ground turmeric
• ½ tsp hot chilli powder (optional)
• 2 tsp ground cumin
• 2 tsp ground coriander
• 2 bay leaves
• 2 x 400g cans red kidney beans, rinsed
• 142ml pot double cream
• ½ tsp garam masala
• handful chopped coriander