This is a fun recipe! I made it with STUR natural sweetener too, which adds color as well as taste. If you do not have Hibiscus tea, that isn’t going to change the taste, but the candy will not be pink. You can play with different flavors to your liking! After fructo-oligosaccharides the highest short chain fatty acid yielding prebiotic is — collagen. That’s right. Collagen (like the great lakes gelatin collagen hydrolysate) is a great prebiotic.