Cafe Noir recipe

I recently bought a pack of McVitie's Cafe Noir expecting shop junk and for once quite liked it. It's very light and crunchy like a rich tea with a thin icing which seems to permeate the upper half (rather than a simple iced topping).

They seem to derive from the dutch cookie "verkade cafe noir".

I couldn't find a recipe or anyone trying to recreate them. Any ideas if they can be created at home?

http://ift.tt/1BQaqmZ's+cafe+noir