Preheat your oven to 375°F (190°C).
Core the apples, and then use a sharp knife or a mandoline slicer to slice them thinly.
Mix the apple slices with lemon juice to prevent browning.
Roll out the puff pastry on a floured surface and cut it into 2-inch wide strips.
Microwave the apricot jam and a little water to thin it, then brush each strip of pastry with this mixture.
Arrange the apple slices on the top half of the pastry strip, overlapping slightly, with the skin side sticking out.
Sprinkle cinnamon over the apple slices.
Fold the bottom half of the pastry strip over the bottom of the apples.
Starting from one end, gently roll the strip to form a rose shape.
Place the rose pies into a greased muffin tin.
Bake for 35-40 minutes, until the pastry is golden brown.
Let cool slightly before removing from muffin tin and serving.