Vegan Chickpea Curry Jacket Potatoes

Ingredients

• 4 sweet potatoes
• 1 tbsp coconut oil
• 1 ½ tsp cumin seeds
• 1 large onion, diced
• 2 garlic cloves, crushed
• thumb-sized piece ginger, finely grated
• 1 green chilli, finely chopped
• 1 tsp garam masala
• 1 tsp ground coriander
• ½ tsp turmeric
• 2 tbsp tikka masala paste
• 2 x 400g can chopped tomatoes
• 2 x 400g can chickpeas, drained
• lemon wedges and coriander leaves, to serve