Exercise:
1. Cut the butter into small pieces and heat it to melt into liquid.
2. Add15g of broken eggs and 40g of milk to the butter, and mix well with an egg beater to form a mixed solution.
3. Add 40 grams of powdered sugar and 15 grams of milk powder and continue to stir evenly.
4. Pour 145g low-gluten flour into the mixture and knead it into smooth dough by hand.
5. Put the dough on the chopping board and roll it into a rectangular dough sheet with a thickness of about 0.3CM.
6. Cut off the irregular four sides of the patch and turn it into a regular rectangle. Cut the rectangular dough into small squares about 1.8CM square.
7. Put the cubes into the baking tray, and send the baking tray to the oven preheated to 180 degrees, and bake for about 12 minutes. After cooling, it is sealed and stored.