Low-gluten flour sieved
Cut the butter into small pieces with water, salt and sugar, heat it with a small heat, stir until it boils.
Pour the sieved low-gluten flour and stir quickly to no powder
Wait until the batter is cooled until it is not hot. Add the egg mixture in portions, and wait until the egg is stirred until it is completely absorbed.
Use a chopstick to pick up the batter, the batter is in the shape of an inverted triangle, and it will not slip.
Use a small spoon to dig up the puff dough directly on a baking tray with tin foil or oiled paper.
The oven is preheated at 200 degrees, and baked at about 200 degrees for about 15 minutes. When the puff is formed, the temperature is lowered to 170 degrees and the baking is continued for about 20 minutes. Bake until the surface is light brown