1. Sift 200 grams of all-purpose flour, add sugar and milk powder, and stir slightly.
2. Add 70 grams of melted butter, milk, and egg liquid, and mix well.
3. The salted egg yolk is steamed and crushed for later use.
4. Sift 100 grams of low-gluten flour, add crushed salted egg yolk, 30 grams of melted butter, and mix well.
5. Put the salted egg yolk dough on top of the white dough and wrap it.
6. Fold the dough flat, fold three times and then roll flat, fold three times again and roll flat.
7. Slowly roll the dough into a thin rectangle, sprinkle with sugar, make small holes with a fork, cut off the edges, and divide into rectangles of similar size.
8. Put it in the preheated oven and bake at 160 degrees for 15-20 minutes.
Tips:1. The specific baking temperature is subject to the temper of your own oven.
2. It is recommended that the prepared biscuits be consumed within 1 week.
