Does anyone have a tried and true recipe for chocolate ricciarelli? Not chocolate-covered, but chocolate. I had these in Siena at Nannini and brought some home from another Siennese bakery and I really want to make some at home. I've only been able to find recipes for the plain almond kind. Someone suggested that I just add some cocoa powder to the standard recipe, but I'd rather use a recipe that someone has used and had success with. Thanks!