Do not dowel this, IMHO that is the wrong advice, it will not help this crack. Like Ryan says, the best thing to do is to take out the handle, glue the crack and refit handle, but thats a lot of work, and you might get just a good as a result from simply gluing up the crack. Make sure it is well clamped, that's a key factor in getting a good strong fix.
wcc, let us know if you are able to fix this with PVA glue. i have had little success getting watered down pva into such hairline cracks. i use superglue as it is watery enough to penetrate, but it doesn't flex and eventually cracks again.dean@vulcan, how would you get wood or gorilla glue in there?