– 2 1/3 sticks (250 g) unsalted butter, at room temperature – 7 oz. (200 g) cake flour or all-purpose flour – 1 teaspoon baking powder – 7 oz. (200 g) granulated sugar – 4 eggs – 1/2 teaspoon salt – 4 tablespoons fresh milk/yoghurt/heavy cream – 1 teaspoon vanilla essence – 2 tablespoons brandy – 3 oz. (85 g) prunes, cut into raisin-sized pieces + 1 tablespoon flour, mix together