1. Put all-purpose flour, sugar, milk powder and salt into a mixing vessel, and mix well at a slow speed
2. Add ice water and butter, and stir slowly until no dry flour is visible;
3. Change it to fast, beat it until the surface of the dough is smooth, take it out and knead it round and relax;
4. Sort the flaky shortening into suitable sub-sizes;
5. Roll out the dough and flaky shortening in a ratio of 2:1;
6. Put the flaky shortening into the dough and wrap it in;
7. Roll it into a shape with a length-to-width ratio of 3:2 and a thickness of about 0.4cm, and divide it into 4 points evenly from the middle to the ends.
8. Then fold the four parts toward the center from both ends and relax for 15 minutes; this is a quadruple fold;
9. Repeat the folding action three times, and finally complete the four-fold four times;
10. Roll the dough to a shape with a thickness of about 0.5cm and a width of about 35cm, and roll it up from both ends to the middle.
11. Seal the plastic wrap and freeze for 30min;
12. Cut the dough into thin slices with a thickness of about 0.6cm;
13. , Dipped in coarse granulated sugar on one side, sugar-free side down, and put it in a baking tray;
14. Adjust the Depu oven to 210 degrees, and bake it for 25 minutes;
15. Delicious
Tips:If the dough is too hard and it is not easy to extend into the flaky shortening during rolling, the softness and hardness of the oil surface should be consistent;
Each time it is rolled, it should be relaxed for 15 minutes; when the room temperature is high in summer, it should be placed in refrigeration to relax;
