This icing is made with granulated suagar instead of confectioners. Back in the day when my husband and I were in school, the cafeteria served a chocolate cake with "hard" icing. You could literally break it off and eat it like (fudge) candy. It still had a soft texture though. My husband is always after me to make it. I've searched and searched and this recipe comes closest to what I remember. I found this one on Food.com but tweaked the directions to ensure that the icing sets right and added 1 tsp. vanilla as an option. Original recipe calls for margarine, I haven't tested it with butter.