A traditional French cake with a rich, buttery crumb and golden crust — simple to make, elegant to serve.
1 cup (226g) unsalted European-style butter, softened
3/4 cup (150g) granulated sugar
4 large egg yolks (or 2 whole eggs + 2 yolks)
1 1/2 cups (190g) all-purpose flour
1/2 tsp fine sea salt
1 tsp vanilla extract (optional)
1 egg yolk (for brushing top)
Preheat oven to 350°F (175°C). Butter and flour a 9-inch round pan.
Cream butter and sugar until pale and fluffy.
Add egg yolks one at a time, mixing well. Stir in vanilla.
Sift in flour and salt. Fold gently until just combined.
Spread batter evenly in pan. Score top with a fork in a crisscross pattern.
Brush with egg yolk and bake 35–45 minutes until golden and firm.
Cool 10 minutes in pan, then cool completely on rack. Serve at room temperature.
Store at room temp up to 4 days.
Flavors improve after resting overnight.
Add citrus zest or a layer of jam for variation.