Separate 1/3 of the dough for the lattice and refrigerate it again. Roll out the rest of the dough on a lightly floured surface using a rolling pin until it's 3mm thick. If it's too cold, wait for it to come a bit more to room temperature so that it's easier to manipulate.
Lift the dough carefully using the rolling pin and place it over the pie plate, pie pan or tart pan. Lift the sides of the dough and insert them into the corners of the pan, pressing down slightly. Don't cut the excess dough yet.
Sprinkle the base of the pie with almond flour and pour the apple pie filling on top.
Roll out the other third of the dough that we reserved until it's 2mm thick. Cut 2cm or 2/3in strips for the lattice.
Place all the strips looking towards the same direction first, leaving 1cm or 1/2in. in between them.
Lift one of the strips, folding it over itself in half. Repeat this not with the one next to it but the next, and repeat this with all of them. That's when you will cross it with another strip. Then, bring back those strips you had folded.
Repeat this with the rest of the lattice, lifting the strips you didn't lift before. You will do it for one half of the pie first, then rotate it 180 degrees and repeat on the other half.
Cut the excess of the dough leaving an extra 1cm or 1/3in. I use scissors for this purpose.
Fold the excess dough underneath the edge, making a thicker edge. If you're using a pie dish or pan that has an edge, this will be folded over that edge. If you have a tart pan like me, it will be inside the pan.
To crimp the edges, you will press the edge with one finger from the inside of the pan and surround that finger with your index and thumb of the other hand from the outside of the pan. This will form a tip. Repeat this all around the edge.