Onion bhajis with coriander and mint chutney

For the bhajis:

2 large white onions

1 green chilli

1 tbsp chopped coriander

½ tsp garam masala

½ tsp turmeric

1tsp flaky sea salt

½ tsp nigella seed, optional

A generous pinch of asafoetida, optional

125g gram flour 

60ml cold water

For the chutney:

20g fresh coriander

10g fresh mint

1 green chilli

1 tsp of tamarind paste

1 tbsp of desiccated coconut

60ml natural yoghurt

1 tsp honey