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.

Notes

Before serving, top each slice with a dollop of fresh whipped cream and a sprig of fresh mint.