In a mixing bowl, combine flour and butter until the mixture resembles coarse crumbs. Gradually add ice water, mixing until the dough comes together. Divide the dough in half, shape into disks, wrap in plastic wrap, and refrigerate for at least 30 minutes.
Roll out one disk of dough on a lightly floured surface and fit it into a 9-inch pie dish. Trim the edges.
In another bowl, mix raspberries, sugar, cornstarch, and lemon juice. Pour the mixture into the pie crust.
Roll out the second disk of dough and place it over the filling. Trim and crimp the edges to seal. Cut a few slits in the top crust to allow steam to escape.
Bake for 45 minutes or until the crust is golden brown and the filling is bubbly. Let cool before serving.
Notes:
Serve with a scoop of vanilla ice cream for an extra treat.