Roll out the pastry and line the tart case with it, trimming away any excess at the edges.
Place the pastry in the fridge to chill for a while.
Preheat the oven to 325°F/165°C/Gas 3.
Peel the apples, remove the cores and cut the apples into ¾ inch/2 cm pieces.
Mix together the eggs, crème fraiche, caster sugar, Calvados and cinnamon.
Place the apple in the base of the tar mould, and then add the Calvados mixture.
Place in the center of the oven and bake for 40 minutes.
Allow to cool thoroughly, and then dust with icing sugar to serve.
Next, eat well! Bon Appetit!
Notes
This recipe, in essence, is a custard apple pie.
To test for doneness: Insert a knife into the filling near the end of the baking time. If the knife comes out clean, it is cooked. But, it is best to take the pie out when there is still a small film of filling on the knife, as the pie will continue to cook for a few minutes sitting on the cooling rack.
When opening the oven door while baking, be brief. When the oven door is opened, the heat escapes. Then, when it is closed, the heating element turns on to bring the oven back up to temperature, and this can cause your item to burn.