In the seventies or eighties I first met this fruit – it was a time when a number of new crops appeared in New Zealand. The kiwano seemed to disappear from the scene rather soon, and I thought I had the explanation, dubbing it the world’s most disappointing fruit (beautiful to behold, but no taste to match the appearance).
So I was surprised when I saw them again on sale in our local supermarket. Isn’t it just a stunning looking fruit? I had to give it another try, and take some pictures at least. My earlier recollection was of a more vividly green inside, something that seems to be borne out by other descriptions on the web. The taste still leaves me dissatisfied. There are suggestions on the web for uses (frequently the decorative qualities are highly praised),
The name kiwano appears to be a trade mark for fruit grown in New Zealand, which would explain the kiwi part of the word. But it appears that this fruit has more names than horns: horned melon (Cucumis metuliferus), African horned cucumber or melon, jelly melon, hedged gourd, English tomato, melano, or kiwano. It is indeed a native of Africa.
I have found a recipe for a sorbet using kiwano. While I have not tried it, I fully endorse the sentiments of the author regarding the fruit. The youtube video on how to eat a kiwano is unreservedly enthusiastic about the kiwano.