PUFF PASTRY
Place the flour, water and a small amount of butter in the mixer.
Knead until you get a smooth dough without overworking the mass. Form a ball, cut the top crosswise, cover with a tea towel and let the dough rest at room temperature for about 30 minutes.
Spread the butter into a rectangle about 1.25cm thick on parchment paper, cover the block with butter and refrigerate until firm but pliable (it should be able to fold gently without breaking).
On a lightly floured surface, roll out the dough slightly wider than the width of the butter block, and a third of the way down. Place the block of butter at one end of the dough. Fold the dough halfway into the butter, fold the other part, pressing firmly to seal the edges all around. Wrap the dough tightly and let cool if necessary.
Make a first turn (double turn) by rolling the dough into a 2 cm thick rectangle, fold the dough about three-quarters of the way through the dough. Fold the other portion over a quarter of the dough so that it reaches the left edge. Fold the larger side over the smaller side, then pack and refrigerate for at least 1 hour.
The second and fourth turns will be single turn each time, with an hour of rest each time.
The third turn will be like the first (double). After the last folding, the dough should be tightly wrapped in plastic sheet and refrigerated for at least 8 hours before use.
To use it, roll out the puff pastry to a thickness of 3 cm and refrigerate it before cutting it with a ø22 cm stainless steel circle. Bake the puff pastry in the oven at 200ºC for 10 minutes and then lower the temperature to 170ºC. Bake for about 25 minutes until golden brown.