The walnut cake of the Périgord, made with ground walnuts standing in for much of the flour, which gives a dense, moist, fine-crumbed cake rather than an airy sponge. The Dordogne is France's walnut heartland, with the Sarlat region long calling itself the "capitale de la noix," and the Noix du Périgord carries a protected appellation. The cake is often deepened with a note of coffee or caramel, and sometimes finished with a coffee glaze or a scatter of walnut halves. It is rich, nutty, and keeps well — better, in fact, after a day.
A regional dessert of the Périgord (the Dordogne and its neighbours in southwest France), built directly on the area's defining crop. The Dordogne is the centre of French walnut growing, and the Sarlat district markets itself as the capitale de la noix. The Noix du Périgord — covering the corne, franquette, grandjean and marbot varieties — received France's AOC in 2002 and the European AOP in 2004, and a separate AOP protects the walnut oil. As a homely farmhouse cake there is no single inventor; like much walnut baking it grew up wherever the harvest was abundant, and many variants circulate across the region's households and pâtisseries.
A close, moist, almost fudgy crumb the colour of pale toffee, dense with the oil and flavour of ground walnut. The taste is deeply nutty with a faint, pleasant bitterness from the walnut skins, lifted where a baker adds coffee or caramel. It is a cake to eat in a small slice with coffee, not a light teatime sponge; the surface walnut halves give a toasted crunch against the soft interior.
Replacing much of the flour with ground walnuts changes the cake's structure: less wheat means less gluten, so the crumb sets dense and tender rather than springy, while the walnuts' own oil and protein hold moisture, keeping it fudgy for days. Those same oils carry most of the flavour. Two cautions follow from the chemistry: walnut skins are tannic and ground walnuts turn bitter quickly, so a light toasting (around 180°C until fragrant) and prompt use mellow them; and because the batter is high in fat and low in gluten it has little structure to trap moisture, so it dries out fast if over-baked — it should come out while the centre is still moist.
Variations
Recipes range from half-flour-half-walnut to nearly flourless; the all-ground-nut versions are densest. A coffee note — coffee in the batter or a coffee-and-icing-sugar glaze on top — is the most traditional Périgord finish, while others lean on caramel, honey or a splash of walnut liqueur. Walnut halves pressed into the top before baking are common. Close relatives exist across walnut-growing Europe: the Italian torta di noci and the rolled Central-European walnut pastries (potica, bejgli) use the same nut very differently.
On the Palate
Where Gâteau aux Noix sits in the French flavor cloud
Ingredients
Serves 8
How it's made
8 steps · 25 min active + 50 min waiting
- 112 min
Lightly toast the walnuts in a 180°C oven until fragrant, cool, then grind most of them to a coarse meal; reserve some halves to decorate.
Watch outToast the walnuts only until fragrant — ground walnuts turn bitter fast, so a light toast mellows the skins; scorch them and the whole cake goes bitter.
- 25 min
Cream the butter with the sugar until pale and fluffy.
- 34 min
Beat in the eggs one at a time, then mix in a little coffee or coffee extract if using.
- 44 min
Fold in the ground walnuts together with the smaller amount of flour and the baking powder, taking care not to over-mix.
- 55 min
Scrape the batter into a buttered, lined cake tin and level the top; press the reserved walnut halves on.
- 638 min
Bake at 175-180°C for about 35-40 minutes, until set at the edges but still just moist at the centre.
Watch outPull it when the edges are set but the center's still just moist — this batter's low in gluten and dries out fast if you overbake.
- 715 min
Cool in the tin briefly, then turn out onto a rack to cool completely.
- 820 min
If desired, glaze with a thin coffee icing once cool, and let it set before slicing.
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