This very big chocolate bar from President's Choice I got as a Christmas gift. The chocolate is milk chocolate, unfortunately (you have to go with the Almond one for Dark chocolate), but it does contain whole hazelnuts. The ingredient listing is as good as any milk chocolate bar (okay, perhaps better), sugar, milk powder, hazelnuts, cocoa butter, unsweetened chocolate, canola lecithin and natural vanilla flavour.
How does it taste? Sweet, like most milk chocolate bars, but the hazelnuts are tasty, and crunchy. I'd definitely like to see a Dark chocolate version.