Ingredients
Equipment
Method
Make the pie
- Preheat the oven to 400°F and line a 9-inch pie plate with the bottom crust. Keep the second crust ready for topping.
- Combine rhubarb, strawberries, sugar, cornstarch, salt, and vanilla in a large bowl. Stir until the cornstarch looks evenly distributed.
- Let the fruit mixture sit for 10 minutes. You should see it start to look glossy and lightly syrupy.
- Pour the fruit mixture into the pie crust and dot with butter. Distribute the fruit evenly so it bakes uniformly.
- Top with the second crust, trim, and crimp the edges. Cut decorative vents to let steam escape.
- Brush the crust with beaten egg and sprinkle with sugar. The surface should look shiny and lightly sparkly.
Bake and cool
- Bake for 20 minutes at 400°F. Look for the edges to set and the filling to begin bubbling through the vents.
- Reduce the oven to 350°F and bake for 35-40 minutes more. Bake until the crust is golden and the filling is actively bubbling.
- Cool completely for at least 4 hours before slicing. The filling should thicken and hold its shape when cut.
Notes
For the cleanest slices, cool the pie until room temperature, then chill for 1 more hour if your kitchen is warm. Store covered in the refrigerator for up to 4 days; the flavor improves after a day. Freeze baked pie (wrap tightly) for up to 2 months, thaw overnight in the refrigerator. For a lighter option, use half the sugar and add 1 extra tablespoon cornstarch to help the filling set.
