Roasting vegetables

[Cheffie]

In SA, all I ever saw was the pale flesh variety of sweet potato as we know it.

Over here the 'yellow-white' flesh version is not often seen, with the 'sweeter' orange version in more abundance.

The yam is African in origin, whilst the sweet potato originated in South America.

http://plantanswers.tamu.edu/vegetables/...otato.html

http://www.bbc.co.uk/dna/h2g2/A1984421