Blackberries are in season, so make the best of them. This blackberry pie is mouthwatering!   Yummy Blackberry Pie Ingredients Pie Crust 4 cups flour 1 3/4 cups vegetable shortening 1 tablespoons sugar 2 teaspoons salt 1 egg 1 tablespoon vinegar Ice water Filling 4 cups blackberries or more 2/3 cup sugar dash of salt