In Brittany, the westernmost region in France, butter is a way of life. Since the Middle Ages, people there have used a distinctive, sea-salty butter in all sorts of cooking, including this supremely simple cake. Made with little more than butter, flour, sugar, and eggs, it has a dense, crisp texture, similar to shortbread. We topped our version with a fresh strawberry compote spiked with Grand Marnier. Accompanied by a cup of coffee, it's a pleasant finish to dinner; if you have any left over, you can nibble on a slice for breakfast the next morning.
Photography: Charles Schiller
Source: Martha Stewart Living, May 2002
Yield Makes one 9-inch cake
1 cup (2 sticks) unsalted butter, room temperature, plus more for pan
Preheat oven to 350 degrees. Cream butter and sugar in bowl of electric mixer fitted with paddle attachment until light and fluffy. Beat in vanilla and yolks one at a time, beating well after each addition. Add flour and salt; beat just until combined. Do not overmix.
Transfer batter to 9-inch tart pan with removable bottom; with small offset spatula, spread batter and smooth top. (If necessary, chill batter 10 minutes before smoothing.) Place pan in refrigerator 15 minutes.
Remove from refrigerator. Brush top with beaten egg, and mark a criss-cross pattern with a fork. Brush again with egg. Bake until cake is deep golden brown and edges pull away from sides of pan, about 50 minutes.
Transfer to a wire rack to cool slightly. Remove cake from pan, and slice while still warm. Serve with strawberry compote.