Chocolate Glaze for Chocolate Beet Cake

My mother made this beet cake back in the 40's. She had 5 of us kids, so it didn't last long. She would bake stuff for people who asked (back then you used barter a lot). She once made this for some one and decorated it with sugared violets and mint leaves. We were some unhappy kids because we couldn't have any. Mom made more after that, but without the pretty violets.