No Bake Best Blueberry Pie with Sour Cream Topping

1 pie shell, baked and cooled
FILLING:
3 cups fresh or frozen blueberries
1/3 cup sugar
1 tablespoon plus 2 teaspoons cornstarch
1/4 teaspoon salt
1/4 teaspoon ground cinnamon
2/3 cup water
1/4 cup medium sherry
2 teaspoons lemon juice
SOUR CREAM TOPPING:
1 cup sour cream
2 tablespoons sugar
1 teaspoon vanilla

Spread the berries in the pie shell.

Mix sugar, cornstarch, salt and cinnamon in a 4 cup glass measure. Stir in the water.

Microwave uncovered on high stirring every minute until thickened and clear, 3 to 4 minutes.

Stir in the sherry and lemon juice. Pour over the fruit in the pie shell.

Refrigerate at least 2 hours. Serve with Sour Cream Topping.

SOUR CREAM TOPPING:
Mix together, sour cream, sugar, and vanilla.