Cut the puff pastry into strips
Slice the apples very thinly, place them in a bowl with water and lemon juice, and microwave for 3 minutes at maximum power (or blanch them)
Brush apricot jam on the pastry, layer the apple slices, and fold the pastry over itself
Roll up to form a rose, then sprinkle with sugar and cinnamon
Bake at 190°C (375°F) for 20 minutes
Dust with icing sugar and serve
