Cacao nibs are crushed seeds from the Cacao plant. It is these seeds that are the key ingredient in chocolate. While not technically chocolate themselves, our nibs do have a wonderful cocoa smell to them, and will provide a very subdued cocoa-like flavor to any beer.
Suggested usage is similar to dry-hopping, add the nibs in your secondary or keg. 4 oz of nibs per 5 gallons is a good starting point. Nibs can also be used in the boil (thwy will impart some bitterness), in the whirlpool, or made into an alcohol tincture and added to the beer.