Peel and core the apple, then cut into small cubes, sprinkle with the lemon juice and toss to combine. Add the brown sugar and cinnamon and gently combine.
On a flat surface unroll the puff pastry, and gently roll with a rolling pin to flatten and even out. Spread with the softened butter. Evenly spread the apple filling on top. Roll up the dough tightly from the short side. Wrap in plastic and refrigerate for at least an hour or until firm. (I left mine overnight).
Slice the roll into 10 slices (approximately ¾ inch each). Place on a parchment paper lined baking sheet. Chill while the oven is pre-heating 15-20 minutes.
Pre-heat oven to 350F / 180C.
Bake for approximately 18-20 minutes or until golden brown. Let cool on pan 5 minutes then move to a wire rack to cool completely or eat warm. Serve dusted with powdered sugar or with a simple vanilla glaze. Enjoy!
VANILLA GLAZE
In a small/medium bowl combine the powdered sugar, milk and vanilla. The glaze shouldn't be too thick or too thin.
Notes
How to store leftovers?
Puff pastry apple cinnamon rolls are best fresh (while still warm) but can be stored in an airtight container for up to two days. I like to warm them up briefly in the oven, microwave or air fryer.
Can I freeze these?
Yes, you can freeze these apple cinnamon roll ups before baking or after baking. To freeze before baking, assemble, slice and then flash freeze on a parchment paper lined baking sheet. Once frozen, transfer to a freezer safe container or bag and freeze until ready to bake. Bake from frozen, increasing the baking time by a few minutes. To freeze these after baking, cool completely then store unglazed cinnamon apple pastries in a freezer safe container. Reheat in the oven to crisp and serve warm drizzled with glaze. .