Prepare your workspace by preheating your oven to 375°F (190°C) and lightly greasing a 6-cup muffin tin with butter or cooking spray.
Fill a large bowl halfway with water and add the lemon juice – this prevents the apple slices from browning.
Core and halve each apple (no need to peel) and slice them very thinly using a sharp knife – the thinner your slices, the more flexible and rose-like they’ll be.
Immediately place apple slices in the lemon water and microwave for about 3 minutes until slices are slightly soft and bendable but not mushy. Drain and pat dry gently with paper towels.
Mix cinnamon and sugar in a small bowl and set aside.
Roll out the puff pastry sheets on a lightly floured surface and cut each sheet into 3 equal strips, approximately 3 inches wide by 12 inches long, giving you 6 strips total.
Heat the apricot preserves with water in the microwave for 30 seconds until fluid, then strain if chunky and brush this mixture across each puff pastry strip.
Sprinkle each strip with cinnamon sugar evenly across the surface.
Arrange apple slices along the upper half of each pastry strip, overlapping slightly with the skin side extending just beyond the pastry edge – this creates the rose petal effect.
Fold the bottom half of the pastry up over the bottom of the apple slices, then gently roll each strip from one end to the other, creating a rose shape.
Place each rose in the muffin tin and brush tops lightly with melted butter.
Bake for 25-30 minutes until the pastry is golden brown and fully cooked at the center.
Allow to cool for 5 minutes in the tin, then carefully remove and transfer to a wire rack.
Dust with powdered sugar just before serving if desired.