This pie helped me win a bake-off once. This crust recipe is from Martha Stewart and is sweeter than a standard pie crust, but I think it works really well with the blueberries.
6 C fresh or frozen blueberries
2 C sugar
3 Tbs corn starch
1 Tbs lemon juice
Cinnamon and nutmeg to taste
2 1/2 C flour
3 Tbs sugar
1 C cold, unsalted butter
2 large egg yolks
4 Tbs ice water
In a food processor, mix the flour and sugar. Add the butter and process until coarse, approximately 10 seconds. Add the egg yolks one at a time through the feed tube, while the machine is running and add enough ice water that the dough just holds together. Turn dough out onto two pieces of plastic wrap and press into flat circles. Chill in the refrigerator for at least an hour.
Meanwhile, toss the berries with the rest of the filling ingredients. Take one of the pie crusts out of the refrigerator and roll out to about 1/8 inch thickness. Line a deep dish pie pan with it and fill with the berry mixture. Roll out the second crust and cut into 1" strips. Weave a lattice over the top of the pie, tucking the ends of the strips under the bottom crust. Pinch the edges of the crusts together.
Bake in a 450 degree oven for 10 minutes. Turn the oven down to 350 degrees and bake for another 30-35 minutes, or until the crust is golden brown and the filling is bubbling.