Add the T45 flour, T55 flour, salt, sugar, yeast, vegan milk and the first amount of butter (60 g) into your mixing bowl.
Mix for 3 minutes on low speed to combine your ingredients. After, keep on mixing for 7-9 minutes on medium speed. Stop the machine when you can easily stretch your dough and you have a beautiful glutinous net.
Shape your dough into a ball, cover it with cling film and let it sit at room temperature for 35-45 minutes.
Take a piece of parchment paper and fold it into a 15 x 30 cm (6'' x 12'') rectangle. Also prepare a 15 x 15 cm (6'' x 6'') rectangle out of parchment paper as well. Have a look the video or the photos above to understand better that step.
Now, take the second amount of vegan butter (150 g) and place it inside your 15 x 15 cm (6'' x 6'') parchment paper rectangle. Close it and roll the butter into all the corners. Your butter might have to soften a bit before. Once this step is done, put the butter back in the fridge
Once your dough has risen, place it inside your 15 x 30 cm (6'' x 12'') parchment paper rectangle. Now flatten it by pressing it down with your hands. You want to remove all the air that is inside of your dough.Then close your rectangle and push your dough into all the corners. You want this to be as even as possible. At this step, don't worry if the dough doesn't stay perfectly in the corners. After, place the dough into the freezer for 10 minutes. Take out the chilled dough and the butter. If necessary, roll the dough into the corners. Place the dough rectangle in front of you. Place your butter rectangle on one of the sides of your dough rectangle. Then, using a knife, cut your dough in the middle. Place the other half of your dough on top of the butter. You now have a square sandwich of dough - butter - dough. Roll out your dough to a length of around 60 cm (24''). Remove any excess flour on top of your dough and do a double fold. If you are unfamiliar with this step, check out my video or the description above.
Put your puff pastry in the freezer for 5-10 minutes.
Then, cut open the two folded sides of your dough. These should be left and right of you, meaning that one of the open sides is facing you (see image 14).Roll out your dough to around 40 cm (16''), then do a single fold. Now, put the dough into the fridge for at least one hour for it to relax. Prepare the Apple Cinnamon Filling in the meantime.