While we're hanging in that suspense, here's a potato to discuss. It's not purple, but the mechanics should be the same.
A common story, I'm sure. Bought a sweet potato intending to cook it. Set it in "convenient" spot & forgot about it. Some time later, 4-6 wks maybe, looks like I should propagate instead of prepare.
IDK what might be called "slips" in the for-sale realm, but I snapped these off of the potato, bending them away until they came loose. The longest one is about 13-14".
I put the stems in about an inch of water in a cup until it stops raining. Whenever I can get outside, I'm going to cut the potato in about 4 pieces & bury them, stick the stems in the ground nearby... Is that similar to what others do?