A rich, dense, buttery French cake with a golden crust and a tender crumb — perfect for tea time or holiday dessert tables.
1 cup (2 sticks) unsalted European-style butter, softened
1 cup granulated sugar
6 large egg yolks (reserve 1 yolk for egg wash)
2 cups all-purpose flour
½ tsp fine sea salt
1 tsp vanilla extract (optional)
1 tsp milk or cream (for egg wash)
Preheat oven to 350°F. Grease a 9-inch round cake pan and line the bottom with parchment.
Cream butter and sugar until pale and fluffy.
Add 5 egg yolks one at a time, mixing well. Stir in vanilla.
Add flour and salt. Mix until a thick dough forms.
Spread dough evenly in pan. Smooth the top.
Whisk remaining yolk with milk. Brush over top and score a crosshatch pattern.
Bake 35–40 minutes, or until deeply golden.
Cool in pan 10 minutes, then transfer to a rack
Store at room temperature for 3–4 days.
Freeze tightly wrapped for up to 1 month.
Serve with crème fraîche, berries, or jam.