Raspberry Cream Filled Lemon Cookies Author: forgivingmartha Ingredients For cookies: 1 1/3 cups All-purpose flour 1/3 cup cornstarch 1/2 teaspoon baking powder 10 tablespoons butter, at room temperature 2/3 cups powdered sugar 2 teaspoon lemon zest 1 tablespoon lemon juice 1 teaspoon vanilla For filling: 6 tablespoons butter, at room temperature 2 tablespoons raspberry preserves