Cut 1 head cauliflower florets 1-2 inch bites chef's knife cutting board. Three bowls: whisk 1 cup flour 1 cup milk 1 tsp garlic powder ½ tsp salt bowl two smooth batter. Dunk florets tongs batter thick coat drain excess.
Preheat 425°F. Parchment Nordic Ware half-sheet. Spread battered florets single layer tongs no touch. Roast 15 minutes golden firm shake pan mitts halfway.
Melt 3 tbsp butter mix ½ cup Frank's sauce bowl. Pull sheet tongs toss florets sauce coat glossy. Return Nordic Ware half-sheet single layer. Roast 10 minutes crispy charred edges.
Mitts yank sheet. Plate wings tongs celery sticks ranch dip side. Dig in sticky spicy.