Preheat oven to 400. Line a baking sheet with a silpat or parchment paper.Set up a station with three large bowls. In the first bowl, place the rice flour. In the second, place the Ener-G+water. In the third place the panko mixture.Working in batches, place some of the rinsed-and-still-wet cauliflower florets into the first bowl with the rice flour, and use your hands to toss to coat. Then pick up the cauliflower, shaking off any excess flour and place into the bowl with the vegan egg mixture, and toss to coat. Then place the coated cauliflower into the bowl with the panko and toss well to combine. The pieces don't need to be completely covered in panko, but If you find you are having some trouble with getting it to stick, moisten with a little of the vegan egg mixture and press the panko onto the florets with your fingers.Place the cauliflower onto the lined baked sheet in a single layer. Repeat until all of the cauliflower pieces are coated, then spray the tops of each with a little oil, then season with salt and pepper. Place into the oven for 15 minutes, or until the tops are slightly golden.Remove, flip the florets and respray the other side with a little more spray oil. Bake for 10 minutes more, or until golden all over. Do keep an eye on them towards the end of the bake time to prevent burning! (The bake time will vary based on the size of your florets.)To serve, allow the cauliflower to slightly cool, then drizzle with the sauce as desired. Sprinkle with the chopped scallions and cilantro and serve immediately.