Preheat the oven to 450 degrees F.Toss the cut up cauliflower in olive oil.Sprinkle salt all over the cauliflower. Spread on a baking sheet with parchment paper. Bake for 30 minutes, flipping the cauliflower at least twice. The cauliflower will burn slightly.Take out of the oven and sprinkle onion powder and chives over all the pieces or your preferred popcorn flavouring.