Even without doing the grams to ounces conversion you can see this is easy to do because it uses equal amounts of all, and just 20% less of the butter. So make as many as you want.

Mix all the ingredients together, roll into a tube shape and wrap the tube in plastic, then let the dough chill in the refrigerator for two hours.

After two hours, cut small pieces from the dough and roll it into 1" diameter balls. Place the balls on a greased cookie sheet or baking paper. Bake for 25 minutes at 160 C. (325 F) The cookies will flatten out during baking.

Allora, when the cookies have cooled melt some dark baking chocolate in a double boiler, and use a small amount of chocolate to bond together two cookies.