Preheat oven to 425 F. Grease or line a baking tray with foil. Set aside.
In a medium bowl, whisk together the all-purpose flour and garlic powder.
In a separate bowl, add the vegan eggs.
In a third bowl, place the crushed vegan seasoned crouton crumbs.
Dip each cauliflower floret into the flour mixture, then into the vegan eggs, and finally coat generously with the crouton crumbs. Place on the prepared baking tray.
Bake for 20-25 minutes, flipping halfway through, until golden brown and crispy.
While the cauliflower bakes, melt the vegan butter and whisk it together with the buffalo sauce in a small bowl. Once the cauliflower is done, toss the baked florets in the buffalo sauce until evenly coated. Serve immediately with carrots, celery, and your favorite vegan ranch or blue cheese dressing.