Brushing the pastry with egg adds shine while it bakes.
Ingredients
For the pie dough:
Preparation
Step 1
1. Make the dough: Sift the flour, sugar and salt into a bowl. Add the butter and shortening. Using fingertips or a pastry blender, rub the ingredients together until the mixture resembles coarse meal. Sprinkle in the ice water, 2 tablespoons at a time, stirring with a fork until the dough gathers together. Divide the dough into 2 disks; wrap in plastic and refrigerate for 2 hours.
Step 2
2. Preheat the oven to 350°:F.
Step 3
3. In a pot, place the fruits in water just to cover; simmer until tender, 20 minutes. Drain thoroughly and chop. Return to the pot; add the sugar, walnuts, butter and Grand Marnier; simmer for 5 minutes, stirring. Let cool.
Step 4
4. Roll a disk of dough into an 11-inch circle, 1/4-inch thick, on a lightly floured surface. Line a 9-inch pie pan, leaving a 1-inch overhang; spoon in the filling, mounding it slightly.
Step 5
5. Roll the remaining disk as before; cut into 1/2-inch strips and arrange lattice-fashion over the filling; crimp decoratively. Brush the lattice with the beaten egg.
Step 6
6. Bake the tart until the top is golden brown and the filling is bubbling, 30 to 35 minutes. Serve warm or cool.
