Ingredients
Equipment
Method
Prep and preheat
- Preheat the oven to 400°F, then line a 9-inch pie plate with the bottom crust.
- Gather the rhubarb, strawberries, sugar, cornstarch, and salt so you can mix them right away.
Make the fruit filling
- Combine rhubarb, strawberries, sugar, cornstarch, and salt in a bowl and let sit for 10 minutes.
- Pour the fruit mixture into the bottom pie crust and dot the top with butter.
Assemble the pie
- Top with the second crust, either whole or as a lattice, then trim and crimp the edges.
- Brush the crust with the beaten egg wash so it turns glossy and golden as it bakes.
- Sprinkle the top with sugar and cut vents if using a solid top crust for steam to escape.
Bake and cool
- Bake for 20 minutes at 400°F, until the crust starts to turn golden and the filling begins to bubble.
- Reduce the heat to 350°F and bake 30 to 35 minutes more, until the crust is deeply golden and the filling bubbles actively.
- Cool completely for at least 3 hours before slicing, so the filling sets into a jewel-toned, thick texture.
Notes
For the cleanest slices, let the pie cool undisturbed until the filling stops steaming when you gently tap the crust edge. Refrigerate leftovers up to 4 days and reheat individual slices briefly in a 300°F oven; freezing is not recommended because the fruit filling can soften after thawing. If you want a lighter crust, use a store-bought whole-grain or reduced-fat pie crust while keeping the filling measurements the same.
