ABOUT THIS RECIPEA ring with room for praline
Paris-Brest is a French pastry made from choux pastry, usually baked in a ring shape and filled with praline cream. The ring shape is often associated with a wheel, but the most important thing for home bakers is its practical form: after baking, you can slice the pastry horizontally and fill it. The classic combination of hazelnut, caramel, and buttery cream is rich, so small slices are enough for dessert after a meal.
To make the filling, first prepare hazelnut praline: toasted hazelnuts are finely ground with caramel to make a paste. Toasting the nuts deepens their flavor and makes it easier to rub off the skins. Let the caramel harden completely before grinding; in a food processor, it first turns into crumbs and then into a paste. This can take a few minutes. Pause as needed so the machine doesn’t overheat. A jar of pure hazelnut paste is not a direct substitute: it lacks the caramelized flavor. If using ready-made hazelnut praline, choose an unsweetened or not-too-sweet variety and taste the cream before adding extra sugar.
Choux pastry rises from steam. That’s why it’s important to cook the flour briefly over the heat after adding it: this evaporates some of the moisture, allowing the dough to absorb the eggs without becoming runny. Add the egg gradually and watch the texture; the dough should be glossy and fall from the spatula in a broad V shape. Egg sizes vary, so the texture is a more reliable guide than using every last drop from the bowl. Don’t open the oven early in the baking process. A ring that hasn’t set yet can collapse; after baking, let it release steam and cool completely before slicing it.
The cream is mousseline: pastry cream whipped with soft butter until airy and flavored with praline. Let the pastry cream and butter come to roughly the same temperature; cold pastry cream can make the butter seize and leave the cream grainy. If this happens, keep whisking gently or warm the bowl very briefly over lukewarm water. A vanilla pod adds a soft background note, but you can leave it out if you want the hazelnut to stand out more.
Ideally, fill the Paris-Brest on the day you plan to serve it, so the pastry keeps its crisp edge. Dust it with powdered sugar just before slicing and serve the slices with coffee or as the finish to a celebratory dinner. Cover any leftovers and store them in the refrigerator; eat them within two days, although the pastry will soften. Don’t leave the cake at room temperature for a long time, as the filling contains dairy and egg.