The Tarte au Citron de Menton celebrates the unique lemon of Menton—a town on the Italian border that produces France’s only significant citrus crop, prized by pastry chefs for its exceptionally thick, aromatic peel and juice that is sweeter, less acidic, and more complexly floral than standard lemons. The Menton lemon (IGP since 2015) has become a darling of French haute pâtisserie, and the tart built around it showcases its qualities with minimal interference. The base is a pâte sucrée blind-baked to a biscuit-like crunch. The filling is a lemon curd (crème au citron) made from Menton lemon juice and zest: 150ml juice, the finely grated zest of 4 lemons (the thick Menton peel yields extraordinary quantities of zest), 200g sugar, 4 eggs, and 150g cold butter cut into cubes. The eggs and sugar are whisked, juice and zest added, and the mixture cooked over a bain-marie to 82°C, stirring constantly until it thickens to coat a spoon. The cold butter is then emulsified in off the heat, cube by cube, creating a silky, glossy curd with the consistency of thick custard. The curd is poured into the cooled tart shell, levelled, and chilled until set (3 hours minimum). The traditional finish is a thin, torched meringue—Swiss meringue piped in peaks and caramelised with a blowtorch—though some prefer the curd naked with just a scattering of Menton lemon zest. The defining quality of a Menton lemon tart versus any other lemon tart is the zest: where a standard lemon’s zest contributes citric sharpness, Menton zest contributes a floral, bergamot-like complexity that elevates the tart from excellent to transcendent.
Use genuine Menton lemons (or the sweetest, most aromatic lemons available) for the distinctive floral quality. Cook the curd to exactly 82°C—below this and it won’t set, above and the eggs curdle. Emulsify cold butter into the hot curd off the heat for a silky, glossy finish. Chill for minimum 3 hours before serving for proper set. Use generous zest—the Menton lemon’s peel is its greatest asset.
Strain the finished curd through a fine sieve before adding butter to remove any chalazae (egg membrane strands) and zest fragments for a perfectly smooth finish. For intensity, make a lemon syrup by simmering the spent lemon halves with sugar and water, reduce to a glaze, and brush the blind-baked shell before filling—this double-lemon approach creates extraordinary depth. If Menton lemons are unavailable, Meyer lemons are the closest substitute, sharing the sweeter, more floral profile. Reserve some fresh zest to scatter over the finished tart just before serving—the burst of fresh citrus oil amplifies the curd’s flavour.
Using standard lemons without adjusting—reduce sugar slightly as they are more acidic than Menton. Overheating the curd past 85°C, producing a grainy, curdled texture. Adding butter while the curd is still on the heat, which separates rather than emulsifies. Not chilling long enough, resulting in a curd that hasn’t set and slumps when sliced. Applying too much meringue, which overwhelms the delicate lemon flavour.
Pâtisserie! — Christophe Felder