Ingredients
3/4 cup white sugar
3 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

Directions
Preheat oven to 375 degrees F (190 degrees C).
Mix sugar, cornstarch, salt, and cinnamon, and sprinkle over blueberries.
Line pie dish with one pie crust. Pour berry mixture into the crust, and dot with butter.
Cut remaining pastry into 1/2 – 3/4 inch wide strips, and make lattice top.
Crimp and flute edges.
Bake pie on lower shelf of oven for about 50 minutes, or until crust is golden brown.