In an attempt to try out something new I stumbled onto a nice refreshing salad that tastes eerily of apple pie.  Jicama has a texture very similar to fresh apples when it's cut thinly.  A note on blanching the yam, if you're preparing this you're just trying to get it to the right toothyness, raw yams are a little hard to eat.  Don't boil them so long as to be mush though, this is a fresh crunchy salad.  I'm also certain this is the healthiest thing I've posted so far.