Sprinkle 3tsp sugar on paper in the shape of the puff pastry. Place puff on the sugar, fold in 1cm / 0.4" edge.
Lay 3 rows of apple slightly overlapping.
Brush butter and sprinkle 2t sugar over apple and edge.
Bake on preheated tray at 210°C/375°F (190°C fan) for 30 minutes or until edge is very golden and apple edges are light golden.
