Preheat the oven to 200°C / 180°C (fan oven) / 395°F / Gas Mark 6. Cut the apple(s) in half from top to bottom, core and then slice thinly across the width. Half fill a bowl with water; add the lemon juice and apple(s). Microwave on high for 2 minutes. Drain then sprinkle in the cinnamon and gently turn the apples to coat.

Unroll the pastry and use a rolling pin to further roll it out to 50cm long. Cut widthways into one strip per serving. Mix the jam with ((2)) tablespoons of water and brush down the centre of the strip(s). Put ((8)) apple slices along the top half of the strip, slightly overlapping, with the peel at the top. Fold the bottom half of the pastry up and over the apple slices, leaving the tops visible.

Tightly roll up the pastry strip(s) so the apples peek out of the top. Place in a muffin tin misted with cooking spray.

Bake for 20-25 minutes. Allow to coll, then dust with the icing sugar and serve.