Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

Slice the apples in half and remove the core. Then, cut them into very thin slices, about 2-3mm thick.

Place the apple slices in a microwave-safe bowl. Add water and lemon juice, then cover with a damp paper towel. Microwave for 2-3 minutes until they soften slightly.

In a skillet, melt the butter over medium heat. Add the sugar and cinnamon, stirring until combined. Add the softened apple slices and toss them gently in the mixture for about 2 minutes until well coated. Remove from heat.

On a lightly floured surface, roll out the puff pastry sheet to a slightly larger rectangle. Cut it into strips about 1.5 inches (4 cm) wide.

On each strip of pastry, lay several apple slices overlapping slightly, with the skin side facing up. Fold the bottom half of the pastry strip over the apple slices, covering about half of them.

Starting from one end, carefully roll the pastry strip to form a rose shape. Place the rose into the prepared baking dish and repeat with the remaining pastry strips and apple slices.

Place the baking sheet in the preheated oven and bake for 30-35 minutes or until the pastry is golden brown and puffed.

Allow the pastries to cool for a few minutes before dusting them with powdered sugar for a lovely finish.