Preheat the oven to 180°C/Gas Mark 4/356°F.
After the dough has rested, take it out and transfer to a lightly floured surface.
Roll the dough roughly into a 12-14'' circle. Dusting the centre of the dough with some plain flour.
Add the cherries to the centre of your galette pastry, making sure to layer the sides and top with the apple slices.
Fold the edges of the dough over the filling, overlapping the folds and pressing gently to keep them in place.
Egg wash the pastry and add some flaked almonds to the top and sides of the galette.
Bake for 30-35 minutes, until the filling is thoroughly cooked and you get a golden brown crust.
Leave to cool before serving.