These are cream puffs with a chocolate filling and a buttery thick frosting. While recently on vacation in Oahu, we had these at the Liliha Bakery. They are famous for these and sell 5000 a day! Upon arriving home, I looked for a recipe, and pieced this one together from 3 different recipes, recipe #209826 for the choux pastry, recipe #65220 for the chocolate pastry cream filling, and a recipe that was given to me for the chantilly frosting. These are a little bit of work, but the filling and frosting can be made ahead. Absolutely delicious and worth the effort, transports me back to Hawaii! Cooling and assembly time not included in total time.