Combine dough ingredients together by hand. Place in the refrigerator for 30 minutes.
On a floured surface, roll out dough into a 10 to 11-inch circle. Place dough on a sheet of baking paper or in a floured 10-inch round pan (leave the dough overlapping the sides for now).
Place fruit in the center, leaving a 2-inch border. Fold up the edges of the dough over the fruit and pinch into pleats.
Spray border with nonstick cooking spray and sprinkle sugar generously over dough and fruit. At this point you can freeze it as-is. When ready to bake, just defrost and bake.
Bake at 400°F for 55-60 minutes.
Sprinkle generously with confectioners' sugar (as some kids say: a blizzard of sugar).
Notes
You should always taste the fruit before using it in the pie to make sure the fruit isn’t too tart. You want sweet summer fruits for a sweet pie.