Glazed Blackberry Pie

• 5 cups fresh blackberries, divided
• 1 single crust pastry shells, cooked (9-inch)
• 1 cup water, divided
• 3/4 cup sugar
• 3 tablespoons cornstarch
• red food coloring (optional)
• whipped topping

1. Place 2 cups blackberries in pastry shell; set aside.
2. In a saucepan, crush 1 cup blackberries. Add 3/4 cup water. Bring to a boil over medium heat, stirring constantly. Cook and stir for 2 minutes. Press berries through a sieve. Set juice aside and discard pulp.
3. In a saucepan, combine the sugar and cornstarch. Stir in remaining water and reserved juice until smooth. Bring to a boil; cook and stir for 2 minutes or until thickened. Remove from heat; stir in food coloring if desired. Pour half the glaze over berries in pastry shell. Stir remaining berries into glaze; carefully spoon over filling.
4. Refrigerate for 3 hours or until set.
5. Garnish with whipped topping. Refrigerate leftovers.

fresh blackberries, pastry shells, water, sugar, cornstarch, red food coloring, topping

Taken from www.food.com/recipe/glazed-blackberry-pie-419743 (may not work)