Source: http://www.food.com/recipe/cauliflower-popcorn-roasted-cauliflower-115153
1 head cauliflower or 1 head equal amount of pre-cut commercially prepped cauliflower
3-4 tablespoons olive oil
1/2 -1 teaspoon salt, to taste
1 Preheat oven to 425 degrees.
2 Trim the head of cauliflower, discarding the core and thick stems; cut florets into pieces about the size of ping-pong balls.
3 In a large bowl, combine the olive oil and salt, whisk, then add the cauliflower pieces and toss thoroughly.
4 Line a baking sheet with parchment for easy cleanup (you can skip that, if you don't have any) then spread the cauliflower pieces on the sheet and roast for 1 hour, turning 3 or 4 times, until most of each piece has turned golden brown.
5 (The browner the cauliflower pieces turn, the more caramelization occurs and the sweeter they'll taste).
6 Serve immediately and enjoy!