Use blueberries, raspberries, or really any combo of berries you like: Tart: - 2/3 cup (5 oz) butter or margarine (one stick and a bit of another) - 6 Tbsp sugar - 1 egg - 1 cup flour - 1 tsp baking powder Topping: - 2 cups blueberries, not exact measure, can mix other berries, too … Continue reading Laura Olin’s Grandmother’s Berry Tart Recipe