Place large cauliflower florets in a steamer basket. Place about 2 inches of water in the bottom of a large pot. Place the steamer basket in the pot, cover, and place over medium-high heat. Let steam for 5-7 minutes, until cauliflower is soft yet still have a crunch to it. Set aside.
In a bowl, whisk together rice flour, arrowroot, salt, garlic powder. Then add water and whisk until completely combined. In a shallow bowl, add the gluten free panko breadcrumbs.
Using one hand, dip the each piece of cauliflower into the rice flour mixture. Once coated, add to the panko breadcrumb mixture and use the other hand to cover the floret in the breadcrumbs. Then place into a large air fryer. Repeat with all the cauliflower. Once all the cauliflower is in the air fryer, spray with coconut oil spray. Turn heat up to 390 degrees F (or 400 degrees, depending on your air fryer) and turn timer on to 20-25 minutes. Turn air fryer on then use tongs to toss the cauliflower every 5 minutes to ensure it evenly cooks throughout and becomes golden brown.
Once the cauliflower is done cooking, add the hot sauce to a bowl then the cauliflower. Toss to combined the serve immediately with the celery, carrots, and ranch, and some fresh dill and cilantro on top. Pro tip – to ensure that the cauliflower doesn’t get soggy, lightly coat the cauliflower in the hot sauce and serve the extra hot sauce on the side for dipping with the ranch!