Once you have baked your vegan pan de muerto. Let it cool completely. If it's not completely cooled down the chocolate hummus will not hold it's shape.
Fill a piping bag with a star tip with the chocolate hummus.
Cut your pan de muerto in half (lengthwise), and pipe chocolate hummus on the bottom half of the bread. Place the other half on top, and serve.
If you can't find chocolate hummus at your local grocery you can make your own.