Garam Masala Cauliflower Steaks with Mint Chutney and Pickled Onions

2 large cauliflowers, leaves removed

200ml natural yoghurt or dairy-free alternative

1 tbsp lemon juice

3 garlic cloves, finely grated

2.5cm piece of fresh ginger, freshly grated

2 tsp ground cumin

2 tsp smoked paprika

1 tsp ground turmeric

1 ½ tsp garam masala

1 tsp ground coriander

½ tsp cayenne pepper

Sea salt and freshly ground black pepper

Olive oil, for brushing

For the mint drizzle

large handful of fresh mint leaves

small bunch of fresh coriander

1 green chilli, deseeded

juice of 1 lime

2 tbsp yogurt

For the pickled onions

1 red onion, thinly sliced

3 tbsp white wine vinegar

1 tsp sugar

To serve

warm naan or flatbreads

fresh coriander

extra lime wedges