This homemade Mixed Berry Pie brings together blueberries, blackberries, raspberries, and strawberries in a flaky, buttery lattice crust. The combination of sweet and tart berries creates a perfectly balanced filling, while the golden lattice top makes this dessert a true showstopper. Whether you serve it warm with a scoop of vanilla ice cream or enjoy it chilled the next day, this pie is a summer favorite that never disappoints.
Make the pie dough: Whisk together flour, salt, and sugar. Cut in cold butter until mixture resembles coarse crumbs with pea-sized butter pieces. Add ice water 1 tablespoon at a time until dough clumps together. Divide into two disks.
Chill the dough: Wrap each disk in plastic wrap and refrigerate for at least 1 hour to firm the butter and relax the gluten.
Prepare the berry filling: Gently combine all berries in a large bowl. Add sugar, cornstarch, lemon juice, lemon zest, vanilla, cinnamon, and salt. Toss gently to coat and let rest for 15-20 minutes.
Roll out the bottom crust: Preheat oven to 425°F. Roll one dough disk into a 12-inch circle and transfer to a 9-inch pie dish. Trim excess dough to 1-inch overhang and refrigerate.
Assemble the pie: Stir the filling and pour into the chilled crust, mounding slightly in the center. Dot with butter pieces.
Create the lattice top: Roll the second dough disk and cut into 1-inch strips. Weave strips over and under to form a lattice pattern. Trim and crimp the edges to seal.
Add egg wash and chill: Brush the lattice with egg wash and sprinkle with coarse sugar. Freeze for 15 minutes before baking.
Bake the pie: Place on a rimmed baking sheet and bake at 425°F for 20 minutes. Reduce temperature to 375°F and bake 35-40 minutes more until golden and bubbling.
Cool and set: Transfer to a cooling rack and let cool for at least 3 hours before slicing to allow the filling to set properly.
Notes
Keep butter and water as cold as possible for the flakiest crust.
Don't skip the 15-20 minute resting time for the filling to prevent a soggy bottom crust.
Use a glass or ceramic pie dish for even heating and to check that the bottom crust is fully baked.
Bake the pie on the lowest oven rack for a crispier bottom crust.
If using frozen berries, do not thaw them first. Just add 10-15 minutes to the baking time.
Store covered at room temperature for up to 2 days or refrigerate for up to 5 days.
Freeze whole or in slices, wrapped tightly, for up to 3 months.
Reheat individual slices in the microwave for 20-30 seconds or warm a whole pie at 300°F for 15 minutes.