Homemade Custard Sauce
1.
Add the egg yolks with sugar and beat with a whisk until fluffy and delicate. Sift in low-gluten flour and beat evenly.
2.
Slowly pour the boiled milk into the egg yolk paste and stir evenly while pouring.
3.
Pour the well-stirred milk paste back into the pot, heat it on a low heat, and stir constantly.
4.
Cook until the milk paste thickens and then turn off the heat.