1. Two egg yolks,
2. Add white sugar and beat until the color is white and the volume swells.
3. Add sifted low-gluten flour,
4. Stir well,
5. Boil the milk,
6. Pour 1/3 into the egg yolk paste and mix well,
7. Then pour it into the milk pan, keep stirring on low heat, and cook until thick,
8. Pour the sauce into a bowl immediately and use it after cooling.
