Butter Cookies with Jam Centers
Yield: 24–30 cookies Ingredients 250 g (1 cup + 2 tbsp) unsalted butter, softened 120 g (½ cup + 2 tbsp) granulated sugar 1 large egg (room temperature) 1 teaspoon vanilla extract 320 g (2½ cups) all-purpose flour 30 g (¼ cup) cornstarch (for extra tenderness) ¼ teaspoon salt Cherry or strawberry jam, or glacé…
