Chicken vindaloo

For the marinade: 

1 tbsp Kashmiri chilli powder

1 tsp turmeric

1 tbsp grated ginger

1 tbsp grated garlic

1 tsp ground cinnamon

1 ½ tsp ground cumin

1 ½ tsp ground coriander

1 ½ tsp ground black pepper

1 tsp flaky sea salt

Juice of one lemon

50ml apple cider vinegar

For the onion gravy: 

3 medium onions

2 tomatoes

1 tbsp sugar

2 whole black cardamom

1 whole star anise

1 bay leaf

Some chopped spring onion and coriander leaves to garnish

For the courgette yoghurt: 

1 large courgette

350g Greek yoghurt

1 tsp sugar

1 tsp salt

Juice of half a lemon

20ml olive oil

½ tsp cumin seed

½ tsp fennel seed

1 tsp mustard seed

2 dried red chillies

A few curry leaves or leaves of fresh basil