I like to keep this one simple and let the chocolaty richness shine through, so fresh berries and a bit of powdered sugar is what I use. Berries like strawberries, raspberries, blueberries, and blackberries are always a hit. A chocolate ganache, or gluten-free frosting is a great idea for a birthday cake, or leaving in plain and serving it for a special brunch with a cup of tea is always an option.