Preheat your oven to 450°F (230°C).
In a large bowl, mix the flour, water, garlic powder, onion powder, smoked paprika, salt, and pepper until smooth.
Dip each cauliflower floret into the batter, ensuring it's fully coated.
Place the coated florets on a baking sheet lined with parchment paper.
Bake for 20 minutes, turning halfway through until golden and crispy.
In a separate bowl, mix the hot sauce and melted butter (if using).
Remove the cauliflower from the oven and toss in the hot sauce mixture.
Return the cauliflower to the oven and bake for an additional 5-7 minutes.
Take out and let cool slightly before serving.
Enjoy with your favorite dipping sauce!