Choux pastry -- fill with sweetened whipped cream or custard.
I make cream puffs a few times a year and this is a really good recipe. Make sure you cook the flour till it pulls away from the sides of the pan and looks kinda dry and don't forget 1 egg at a time. Don't cut out steps. You can fill these with anything. I make custard or a nepoleon cream. You can also fill with fresh fruit like berries maserated in sugar with a spoon of whipped cream. I usually drizzle with chocolate or a hard caramel. If you like them sweet use about 2T. sugar in the water, flour, butter mixture. If you want to make these savory omit sugar, up the salt a little and you can even add pepper to them to make them tastier. Fill with salmon mousse or a savory cheese spread. - 26 Sep 2007 (Review from Allrecipes US | Canada)
I've made these so many times and they turn out really good every time. I fill these with whipped cream mixed with cream cheese [1/2 cup whipping cream + 1/3 cup sugar + 8oz cream cheese] and they taste like little cheese cakes but in cream puff shells. And on some variations, I drizzle melted chocolate on the shells. Always a hit! - 07 Nov 2002 (Review from Allrecipes US | Canada)
In Australia we know these as profiteroles (a French dish) and people make a spectacular wedding cake out of them by building the filled puffs into a pyramid and covering them with a hard toffee glaze. As plain profiteroles we serve them filled with whipped cream or custard and covered in chocolate sauce. This is a very good recipe! My oven is gas and only needed 220 degrees Celcius, not 230 for the first 20 minutes. One trick I know is that if some are still a little raw inside it is not unheard of just to scoop out the uncooked bit!!! - 26 Aug 2003 (Review from Allrecipes US | Canada)