They do sell Magnolia brand. So far the only flavor I was able to purchased are the Halo Halo, Avocado and Pandan. You can request for your specific flavor for they could order it for you. Your input will improve upon their ability to expand their inventory.
I think I saw Ube ice cream there but it was about a month ago.
I don't recall seeing Magnolia ice cream or purple yam. Are you asking about Ube ice cream? I did notice several exotic flavor ice creams, not sure if Ube was among them though.
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