Mix the yoghurt, half the garlic, 10 ml lemon juice, 15 ml olive oil, and 2 grams of salt and pepper, and thoroughly combine. If time allows, chill for 1 hour in the refrigerator before serving.
Preheat oven to 220 ℃, and line a large flat baking tray with baking paper.
Toss the cauliflower with the remaining garlic and oil, spice mix, turmeric and 5 grams each of Salt and Pepper.
Roast for 30 minutes until cauliflower is cooked through and blackened in places.
Serve hot with the yoghurt dressing and lemon wedges on the side. Add fresh parsley if desired.