Spiced whole cauliflower & warm chickpea salad

Name: Spiced whole cauliflower & warm chickpea salad
Prep time: 20 min
Cook time: 1 h 20 min
Total time: 1 h 40 min
Cuisine: European, British
Ingredients: 1 tbsp vegetable oil; 1 whole cauliflower stalk trimmed; 400g can chickpeas drained and patted dry with kitchen paper; 1 small red onion finely chopped; ½ tsp garam masala; ½ tsp chilli powder; 100g full-fat Greek-style yogurt; 5 tbsp coconut cream; 2 ripe tomatoes deseeded and roughly chopped; small pack coriander leaves roughly chopped (reserve the stems for the marinade); juice 1 lemon; extra virgin olive oil to serve (optional); ½ tsp turmeric; 1 tbsp freshly grated ginger; 2 fat garlic cloves crushed; 140g full-fat Greek-style yogurt; 2 tbsp coconut cream; 2 tbsp finely chopped coriander stems (from the pack above)