Peel and core the apples then chop into very thin slices - The thinner the slices are the better as they will soften quicker and are easier to spread over the pastry
Cook in a medium pan along with 2 tbsp of the sugar until soft (approx 8 minutes) Leave to cool while you unroll the pastry
Spread the slightly cooled softened apples over half of the pastry then fold the other half over the top
Cut into 8 strips and flatten down the edges. Seal the edges of each strip by brushing with milk
Twist each strip around three times - If any edges come undone, press again until sealed - some leakage is ok though
Brush each twist with the leftover milk and sprinkle over the remaining 1 tbsp sugar