This recipe comes from the food blog “Alexandra’s Kitchen”
I have roasted whole cauliflowers before, with spices rubbed in but this one is lovely as the lemony yoghurt sauce takes it to another level. (I personally love the charred top)
Count on two people per head of cauliflower
1 (1 1/2- to 2-pound) head cauliflower with leaves
1/3 cup Kosher salt
1 to 2 tsp nice, flaky sea salt, such as Maldon
3 tbsp best-quality extra-virgin olive oil, divided
For the yoghurt sauce:
1 cup good Greek yoghurt like “Fage”
1 tbsp freshly squeezed lemon juice
1/4-1/2 tsp kosher salt or to taste
Extra-virgin olive oil, optional
Za’atar or fresh chopped thyme leaves are an option to mix into the yoghurt
Preheat oven to 550°F with oven rack in center of oven.
Trim the stem of cauliflower, keeping the leaves intact, so it will sit level on a rimmed baking sheet—I line mine with parchment paper. Bring a large pot of water to a boil in a stockpot over high heat. Stir in the 1/3 cup kosher salt until dissolved.
Add the cauliflower to the water; place a heatproof ceramic plate on top of the cauliflower to keep it submerged or use a lid and partially cover the pot. Boil until tender and a fork inserted in the cauliflower meets no resistance, 10 to 13 minutes.
Gently lift the cauliflower from the water, transfer to a colander and drain in the sink. Let stand until the cauliflower has cooled slightly and is dry to the touch, about 15 minutes. Place the cauliflower, stem side down, on a rimmed baking sheet.
Rub 1 tablespoon olive oil between hands, then rub over cauliflower to apply a thin, even layer OR: drizzle the cauliflower with some of the tablespoon of oil, then coat your hands with the remainder and rub the oil all over it.
Sprinkle 1 to 1 1/2 tsp sea salt over the cauliflower (salt might clump in some places). You may need to turn the cauliflower upside down and rub it in the salt that falls on the sheet pan.
Bake in preheated oven until dark brown, about 25 minutes—this may take longer depending on your oven. If you find it’s not getting as dark as you would like, you can run it under the broiler, watching closely the entire time.
Meanwhile, make the yoghurt sauce: stir together the yoghurt, lemon, and salt (and thyme leaves if using).
To serve, smear the yogurt onto a plate. Drizzle with olive oil. Sprinkle with za’atar.
Remove the cauliflower from the oven, and carefully rub with remaining 2 tablespoons olive oil.
Place on top of the yoghurt smear. Serve hot.