Recipe adapted from AllRecipes
3/4 cup white sugar
5 tablespoons cornstarch
1/4 teaspoon salt
1/2 teaspoon ground cinnamon
4 cups fresh blueberries
1 recipe pastry for a 9 inch double crust pie
1 tablespoon butter
Preheat oven to 375.
Mix sugar, cornstarch, salt, and cinnamon. Sprinkle over blueberries.
Line dish with one pie crust. Pour berry mixture into crust and dot with butter. Cut remaining dough into wide strips and make a lattice top.
Bake for 50 minutes or until crust is golden brown.