Wash and core the apples, leaving the skin on. Cut them in half from top to bottom, then slice them paper-thin (about 1/16 inch thick). Place the slices in a bowl of water with lemon juice to prevent browning.
Drain the apple slices and place them in a microwave-safe bowl with 2 tablespoons of water. Microwave for approximately 3 minutes until the slices become soft and flexible.
On a floured surface, roll out the thawed puff pastry slightly to smooth out any creases. Cut the pastry into 6 equal strips, each about 2 inches wide and 8-10 inches long.
In a small bowl, mix the apricot preserves with 1 tablespoon of water. Microwave for 30 seconds until warm and easily spreadable. In a separate bowl, combine the sugar and cinnamon.
Brush each strip of pastry with the apricot preserve mixture. Arrange the softened apple slices along the top half of each pastry strip, slightly overlapping them, with the skin side extending just beyond the pastry edge.
Sprinkle with the cinnamon-sugar mixture. Fold the bottom half of the pastry up over the bottom of the apple slices.
Starting from one end, carefully roll up each strip to form a rose shape. The apple slices will naturally curve and create a realistic rose effect as you roll.
Place each rolled rose in a greased muffin tin to help them maintain their shape during baking. Brush the tops lightly with melted butter.
Bake at 375°F (190°C) for 40-45 minutes, until the pastry is golden brown and crisp. If roses are browning too quickly, tent with foil after 25 minutes.
Allow to cool slightly before removing from the muffin tin. Dust with confectioners' sugar if desired before serving.