On a recent trip I stopped at a place on Hwy 169 that's only open seasonally, for when the apples and pumpkins are ripe, that also carries other items. They have various 'Dutch Licorice' including the infamous double salt kind that leaves you exhaling ammonia, eucalyptus drops (imagine a gum drop that tastes like a throat lozenge), and also many others including Walnetto.
I had only heard of Walnetto before, and then only on the versions of Laugh-In aired or re-aired in the 1980s. If you don't recall the skits, the elderly Tyrone would often offer the frumpy Gladys a Walnetto and get swatted with her purse for it.
I got some to find out just what it was. Little squares of fudge loaded with chopped walnuts seems to describe it. The only problem I've had with it might just be a handling issue. Getting the paper wrapper off of the candy can be a trick as there always seems to be a bit still sticking to the candy. Other than that, they're quite good.