Preheat the oven to 450°F. Lightly spray a large nonstick baking sheet with oil.

In a medium bowl, whisk together 1 cup water, 1 cup all purpose flour, and 2 tsp garlic powder until smooth and lump-free.

Add 22 oz (6 1/2 cups) cauliflower florets to the bowl and stir or toss until each piece is evenly coated in the batter. Allow excess batter to drip off.

Arrange the coated cauliflower in a single layer on the prepared baking sheet, leaving space between pieces.

Bake for 20 minutes, until the batter is set and edges begin to brown.

While the cauliflower bakes, stir together 3/4 cup Franks Hot Sauce and 1 tbsp melted unsalted butter in a small bowl until combined.

Remove the cauliflower from the oven, pour the hot sauce mixture over the florets, and gently toss or brush to coat evenly. Spread the coated florets back into a single layer on the baking sheet.

Return to the oven and bake an additional 5 minutes to set the sauce.

Remove from the oven, let cool briefly, and serve immediately.