Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet.
Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet. Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet.

Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet. Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet.
Prepare the cauliflower: In a large bowl, whisk together olive oil, cumin, paprika, salt, coriander, turmeric, black pepper and cayenne. Add cauliflower and onion, and toss until well coated. Spread mixture in a single layer on a rimmed baking sheet.
