To create the delightful Triple Berry Pie, follow these simple steps:

1. Prepare the Pie Crust:
– In a large bowl, mix the flour, salt, and sugar.
– Add the chilled, diced butter and mix until the mixture resembles coarse crumbs.
– Stir in the ice water, one tablespoon at a time, until the dough comes together.
– Divide the dough into two balls, shape them into disks, and wrap in plastic. Refrigerate for at least 1 hour.

2. Prepare the Berry Filling:
– In a large bowl, gently combine the strawberries, blueberries, and raspberries.
– Add the sugar, cornstarch, lemon juice, vanilla extract, and salt. Mix until the berries are well coated. Set aside.

3. Preheat the Oven:
– Preheat your oven to 425°F (220°C).

4. Roll Out the Pie Dough:
– On a floured surface, roll out one disk of dough to fit your pie dish, about 12 inches in diameter.
– Place the rolled-out dough into the pie dish and trim any excess, leaving about 1 inch to hang over the edges.

5. Fill the Pie:
– Pour the berry mixture into the crust, ensuring it’s evenly distributed.
– Dot the berries with small pieces of butter for added richness.

6. Top the Pie:
– Roll out the second disk of dough and place it over the berry filling.
– Trim and crimp the edges to seal. Cut slits in the top crust for steam to escape.

7. Bake the Pie:
– Place the pie on a baking sheet to catch any drips and bake for about 55-60 minutes or until the crust is golden brown and the filling is bubbly.

8. Cool the Pie:
– Once baked, remove the pie from the oven and let it cool for at least 15-30 minutes before slicing. This will help the filling set.