Pre-heat the oven to 170ºC/340°F and line an oven proof dish with parchment paper.
Place the apples in a large bowl and add 2 tbsp sugar and 1 tsp salt. Allow to sit for 10 minutes then drain.
Add the flour, sugar, cinnamon, vanilla and salt and toss well.
Place the puff pastry onto/into the prepared dish.
Pile the apples onto the puff pastry.
Mix together the caramel and cream then drizzle half of the mixture over the apples.
Fold the corners of the pastry in then brush with beaten egg.
Place in the oven and allow to bake for 45 minutes - 1 hour until the apples are cooked and the pastry is golden brown and puffed. If the pastry is colouring too fast for your liking, loosely cover the galette with foil and continue baking.
Remove from the oven then top with ice cream and the remaining caramel.