I find it hard to believe there's no food coloring involved, but it sounds tasty! I also want to check out the original recipe (from a book – Bread, Cakes & Biscuits by Mary Norwak) for a sweeter version.
GOTTA TRY THIS! Coffee Coffee Cake: It has always been a bit confusing to me that most coffee cakes don't have coffee in them. This version not only is perfect with coffee, but is made with coffee for an extra flavor kick!