If you want to keep things simple, the delicious vegan frosting is the perfect topping. If you want to fancy it up though, there are other possibilities. Consider candied carrot slices, which look pretty and taste amazing. To make them, cut a pair of carrots wafer-thin using a mandolin then add them to a pan with 2 tablespoons of sugar and ¼ cup of water. Cook for 5 minutes and then turn up the heat and cook until you get a thick syrup. Add more sugar and keep tossing until the carrot slices are coated. Cool the candied carrot slices on parchment paper and then decorate the cake with them.