Old Delhi-style butter chicken - Good Food Middle East

Ingredients

• 800g boneless and skinless chicken thighs, cut into bite-sized pieces
• coriander leaves, finely sliced red onion, sliced green or red chilli, naan bread or basmati rice, and chutney, to serve
• 120g Greek yogurt
• thumb-sized piece ginger, grated
• 4-5 garlic cloves, crushed
• 1 tbsp vegetable oil
• 1 lemon, juiced
• 3 tsp mild chilli powder
• 1 tsp ground cumin
• ½ tsp garam masala
• ½ tsp turmeric
• 1kg ripe vine or plum tomatoes
• thumb-sized piece ginger, peeled, half grated and half finely chopped
• 4 garlic cloves, crushed
• 4 green cardamom pods
• 2 cloves
• 1 bay leaf
• 1-2 tsp chilli powder
• 80g butter, diced
• 2 green chillies, cut lengthways
• 75ml single cream, plus a drizzle to serve
• 5-6 dried fenugreek leaves, crushed between your fingers (optional)
• 1 tsp garam masala
• 1 tbsp sugar
• 3 tbsp ghee (see below) or butter
• 2 tsp black mustard seeds
• 1 dried whole Kashmiri chilli
• 6-8 dried curry leaves