My Mom made this frosting all my life, it is so easy and tastes so good, but I don't see it any where in the listings! I have a version of it a 1960 Good Housekeeping Cookbook, but that its much older than that!
Combine cocoa and coffee, add butter and vanilla, beat until smooth. Add sugar gradually until spreading consistency.
With peanut butter and block chocolate, melt chocolate and peanut butter together carefully [30 sec at a time] add vanilla and coffee and mix until smooth. Add sugar gradually until spreading consistency.
Makes enough to frost an 11in sheet cake in the pan, double for a layer cake.