Blueberry pie is a perfect summer dessert. Yes, it's pie; but blueberries are one of the healthiest foods around, and they require no pitting or peeling.
To make an extra-wide lattice-top crust, roll out the dough to 1/8 inch thick, and cut four 3-inch-wide strips. Chill the strips until firm. Weave the strips over the filling, and seal the lattice to the side of the bottom crust with a wash of egg and milk.
On the Martha Stewart Show, Martha substituted 1/4 cup cornstarch with 2 tablespoons cornstarch and 2 tablespoons flour.