This classic, old-fashioned double crust rhubarb pie is the perfect spring dessert. With a sweet-tart filling made from just rhubarb, sugar, and a hint of cinnamon, it lets the pure flavor of the fruit shine. The flaky, buttery homemade crust holds a thick, jammy filling that slices cleanly, making this simple recipe an irresistible treat.
1tablespoonOrange zestoptional, from about 1 orange, adds brightness
2tablespoonsUnsalted buttercut into small pieces (28g)
1Large eggbeaten, for egg wash
1tablespoonCoarse sugarfor topping
Instructions
Prepare the pie crust from scratch or let store-bought dough sit at room temperature for 10 minutes. Divide the dough into two discs, wrap, and refrigerate for at least 1 hour.
On a lightly floured surface, roll one disc of dough into a 12-inch circle. Transfer it to a 9-inch pie dish, press it in, trim the overhang to ½ inch, and refrigerate.
Preheat your oven to 425°F. Place a rimmed baking sheet on the middle rack to preheat.
Trim the ends off the rhubarb, discard the leaves, rinse, and slice into ½-inch pieces until you have 5 to 6 cups.
In a large bowl, whisk together the sugar, flour, cinnamon, and salt. Add the rhubarb and orange zest (if using) and toss to coat. Let the mixture sit for 10-15 minutes to release juices.
Pour the filling and accumulated juices into the chilled pie crust, spread evenly, and dot with the butter pieces.
Roll out the second dough disc into a 12-inch circle. Place it over the filling, trim the excess, and crimp the edges together. Cut 4-5 slits in the top crust.
Brush the top crust and crimped edges with the beaten egg, then sprinkle with coarse sugar.
Place the pie on the preheated baking sheet and bake at 425°F for 20 minutes. Reduce oven temperature to 350°F and bake for 35-40 more minutes, until the crust is golden and filling is bubbling thickly. Cover edges with a crust shield if browning too fast.
Transfer the pie to a cooling rack and let it cool completely at room temperature for at least 3-4 hours before slicing.
Notes
Use firm, bright red or pink rhubarb stalks for the best flavor and color, though green stalks work fine as well.
Slice the rhubarb into uniform ½-inch pieces so everything cooks at the same rate.
Do not skip the resting time after mixing the filling; it helps the juices thicken.
Keep your butter and dough cold right up until baking for the flakiest crust.
Bake on a lower oven rack if your crust tends to brown before the filling sets.
Let the pie cool fully for 3-4 hours; this allows the filling to set properly for clean slices.
Store leftover pie loosely covered at room temperature for up to 2 days or refrigerate for up to 5 days.
Freeze the whole baked pie, wrapped tightly, for up to 3 months; thaw overnight in the fridge before reheating.
Reheat individual slices in the microwave for 20-30 seconds or in a 300°F oven for about 10 minutes.
For a beautiful rustic look, create a lattice top by weaving the top crust into strips.