Whisk all ranch dip ingredients in a small bowl. Set aside in refrigerator.
Pre-heat oven to 450 degrees. Line a baking sheet with foil. Generously rub a cooling rack with olive oil and set on top of lined baking sheet.
Whisk arrowroot into water, then add garlic powder and salt. Pour over cauliflower florets and toss until cauliflower is coated.
Arrange cauliflower in single layer on cooling rack. Bake for 12-15 minutes or until edges of cauliflower begin to brown.
Whisk melted ghee into hot sauce and toss cauliflower in mixture. Return cauliflower to cooling rack and continue to bake for another 12-15 minutes.
Serve cauliflower with ranch dip and fresh veggies like carrots and celery.
Watch the recipe demo here!