While the cake is baking, make the fudge frosting. Beat vegan baking stick or butter until creamy. Then beat in the confectioners' sugar, cocoa powders, vanilla and water together until smooth and creamy.
For ganache: Set the heavy cream in a small saucepan over medium heat, whisking constantly.
When the heavy cream begins to simmer around the edges, immediately pour the cream over the chocolate chips. Let sit then stir.