Origin
Fonçage is the operation of lining a mould or ring with a rolled dough, and it belongs to the classical French pâtisserie kitchen, where the tart shell is a foundation on which creams, fruit and custards are built. The technique is carried today by the professional schools and their manuals, FERRANDI Paris among them, which teach it as a fixed sequence of rolling, lifting, settling and trimming. It is applied to pâte brisée, pâte sucrée and pâte sablée alike, and it precedes the blind baking or the filling.
Description
Fonçage is the lining of a bottomless tart ring, set on a lined baking sheet, with a sheet of rested dough rolled to an even thickness of about 2 to 3 mm. The dough is lifted over the rolling pin, laid over the ring, and pressed into the angle where the base meets the wall without stretching it. The excess is cut flush with the rim, and the shell is chilled before baking so that the fat firms and the gluten relaxes. A ring gives straight, clean walls; a tart tin with a fluted edge calls for the same gesture but a different finish.
The Thread
Flavour Context
A lined and baked shell is filled with crème pâtissière and fruit, lemon cream, frangipane, chocolate ganache or a savoury custard as in a quiche. A sweet wine such as a Sauternes or a Muscat de Beaumes-de-Venise accompanies the fruit and cream tarts, and a dry sparkling wine or a crisp white suits the savoury ones. The reason is structural: the crisp, buttery shell provides a dry counterpoint to a soft filling, and the acidity or sweetness of the wine meets the fat of the pastry.