using ground cocao nibs to make a chocolate "bar"?

[Hapgood]

Hi my amazingly knowledgeable chowhound friends,

I love the Chocovivo chocolate http://chocovivo.com/bean-to-bar/. The stone ground texture is much different than any other chocolate bar that I've had.

Has anyone tried making chocolate bars this way? The bigger question: does anyone have a recipe? I have a bunch of cocoa nibs around the house and I wanted to give it a go - but I'm not really sure how to begin.

Fingers crossed I get some good replies on this one - I have all kinds of ideas of things I want to try mixing in my chocolate.

-Tara