Preheat oven to 425°F. Line a cookie sheet with parchment paper, set aside.
In a large bowl combine flour, garlic powder, salt and milk.
In a shallow dish, add breadcrumbs.
Dip each cauliflower floret in the batter to coat, then immediately roll in the breadcrumbs until covered. Place on prepared cookie sheet. Repeat with remaining florets.
Place into preheat oven and bake for 20 minutes.
While the florets are baking, prepare the sauce. In a saucepan over medium heat add honey, water, vinegar, butter, garlic powder, and salt. Bring to a simmer while stirring, then immediately stir in tapioca starch. Stir until thickened, about 3 minutes. Turn off heat and set aside.
Remove the cauliflower florets from the oven, turn the temperature to 375°F, then brush the cauliflower with the sticky honey sauce (or drizzle with a spoon to coat).
Return the florets to the oven and bake for 10 minutes longer.
Remove from the oven, and let cool before serving. Enjoy!