This apple pie is a great way to finish off a festive meal because it is lighter on the calories than most pies.
Bake the pie crust and let it stand for 15 minutes.
Whip the crème fraîche and cover the bottom of the crust. Lay the apple slices, ovelapping slightly one another. Mix the two sugars and sprinkle them over the apple slices.
Place under the hot broiler for 5-7 minutes, until the sugar becomes golden brown. Remove from them oven and drizzle the liqueur over the the caramelized sugar.
Serve with vanilla ice cream.