1 (9-inch) frozen ready-to-bake pie shell, thawed & ready to bake.
1 (4-serving size) package lemon gelatin
1/2 cup sugar
1/4 cup cornstarch
3/4 cup ginger ale
3 pints fresh blueberries, washed
Bake pie shell according to package directions; set aside to cool.
In a medium saucepan over medium heat, combine remaining ingredients, except 2 pints blueberries.
Cook 5 to 7 minutes, or until gelatin mix has dissolved and blueberries have popped and colored mixture blue, stirring frequently. Remove from heat and let cool about 5 minutes.
Stir in remaining 2 pints blueberries then spoon into baked pie shell.
Chill at least 4 hours, or until set. Serve, or cover and keep chilled until ready to serve.