Chickpea, Sweet Potato and Spinach Rogan Josh

Ingredients

• 1 tbsp rapeseed oil
• 1 cardamom pod
• 1 cinnamon stick
• 2 whole cloves
• ½ tsp cumin seeds
• ½ tsp ground cardamom
• 1 large onion, sliced
• 2 tsp ginger puree
• 2 garlic cloves, crushed
• 120g rogan josh paste
• 240ml prepared vegetable stock
• 1 large sweet potato, peeled and cut into 3cm dice
• 400g can chopped tomatoes
• 240g chickpeas (drained weight)
• 200g spinach
• 90g half fat natural Greek yogurt
• 1 tsp garam masala
• 2 saffron strands
• Coriander, leaves chopped