The Paris-Brest is a famous French patisserie: a ring of choux pastry, scattered with flaked almonds and icing sugar and filled with a praline cream. The name comes from a historic cycle race between Paris and Brest (600 km or 372 miles), as the shape is like a bicycle wheel. 50,1094.6/5 for 14 ratings 2 hours 18 min.
Butter cream is made with egg yolk, sugar syrup and, of course, butter. These days it has fallen rather out of fashion, probably because it's very rich, but it still has its aficionados. Here is the classic plain version, which you can lighten and flavour as you wish. 63,9454.6/5 for 14 ratings 58 min.
Praline is a preparation of caramelized nuts (in this case almonds), with a very characteristic flavour. Either crushed or as a paste, it is used to fill or flavour all manner of things like creams, chocolates, biscuits, etc. 71,9065/5 for 1 ratings 55 min.