If egg cannot be used, dip the chicken in melted CF margarine or in milk alternative. Roll each dipped piece in the breading, and coat well. Drain well on paper towel lined plates. Serve while warm. Extras that have been frozen reheat well.
Some people like to add chickpea flour to their breading.
Blend ingredients in blender or food processor till fine. Experiment with the proportions of these ingredients until you find the breading that you like. I generally use equal amounts of the first three, and add some corn flakes when I want extra crunch. For extra crunch and flavor, process roasted sunflower seeds this is great when corn is not tolerated. Since sunflower seeds are oily and could go rancid, add these to the rest of the breading as you're preparing to cook your meal.