How convenient it is for you to have cassava! You can just harvest it from your mother's garden. I love cassava delicacies; I grew up eating this when my father was still alive. I hope you didn't get tired grating the cassava; at least, you were rewarded with super yummy cassava cake later on. I love the soft, chewy texture of cassava cake and especially the top part which is a bit toasted or burnt. In my area, cassava cake is a bit expensive maybe because the process of making it is a bit tedious (especially the grating part).