Preheat the oven to 450 degrees F.
Line a baking sheet with parchment paper and set aside.
In a large bowl, mix together all the BBQ cauliflower ingredients, except the cauliflower florets.
Add in the cauliflower florets, using your hands to toss and combine.
Put the florets onto the parchment-lined sheet and bake for 35 minutes.
Meanwhile, put all the sauce ingredients in a high-speed blender, and blend on high until combined.
Equally disperse the BBQ cauliflower onto plates and add a bowl of dipping sauce on the side. Serve immediately.