-
Prepare the pie shell by lining a pie plate with one half of the pastry. Trim the outside edge to have a 1/2 inch overhang past the pie plate. Chill till needed. Have the remaining pastry ready, but wrapped in plastic waiting in the fridge till needed.
-
Combine the apple slices and chopped rhubarb in a large bowl.
-
In a small bowl, combine the sugar, arrowroot starch, cinnamon, ginger, cardamom and salt till well blended.
-
Pour this over the fruit in the large bowl. Toss gently to ensure that everything is well coated with the sugar mixture. Let it sit to start releasing the juices from the fruit.
-
Pre-heat the oven to 425F and place a rack at the lower third level in the oven. Take the chilled pie shell out, as well as the remaining pastry.
-
Spread the ground almonds evenly over the bottom of the chilled pie shell. Spoon the filling over the almonds, pressing the apples and rhubarb into the shell to eliminate any air pockets. Pack it all firmly, mounding the final amount so that the middle of the filling is higher than the outer edges.
-
Roll out the remaining pastry and cover as you desire. If you end up just placing the entire pastry over the filling, trim it so that the edges of the lower pastry can come over and cover the top layer. Then crimp or use a fork to finish the edges. Make sure that you cut vent holes in the pastry.
-
See the blog post for more details and other suggestions for preparing the pie.
-
Bake on the lower rack for 35 minutes, till just turning golden brown. Move the pie to the centre rack and drop the temperature to 375 and continue to bake. Once the juices are bubbling, and the crust is golden brown, about another 30 minutes, it is ready to come out of the oven.
-
If the crust or edges are browning too much, cover with a pie guard or foil and continue baking.
-
Cool for at least 3 to 4 hours, or overnight to allow the juices to settle and the filling to firm up.
-
Serve with ice cream, whipped cream or Creme Anglaise.