Ingredients

• 2 Tbsp vegetable oil
• 1 onion
• 2 cloves garlic
• 2 cm piece ginger
• 2 cm piece turmeric root
• 1 tsp mustard seeds
• 4 medium sweet potatoes
• 1 carrot
• 1 red pepper
• 3 medium or 2 large tomatoes
• 1 Tbsp tomato purée
• 1 tsp ground coriander
• 1 tsp ground cumin
• ½ tsp chilli powder
• ½ tsp cinnamon powder
• 2 tsp garam masala
• 1 star anise
• 500 ml water
• 1 tin of chickpeas, drained
• 2 handfuls of spinach or 2 cups of curly kale
• Chopped coriander leaves, to serve