I have used cassava for making fufu swallow, havent used it yet for a drink. Video below is drink made from Guinea corn(sorghum) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fUonz0rFozs.html
Thanks for reaching out. Ive not tried this before but i guess its workable. You can checkout my video on Kunu zaki using Guinea corn i added someother ingredients that would interest you. Also i used rice in my tigernut pudding video. Check these videos out i believe you would love😋 them based on this question😍