Ingredients required: 1 tablespoon butter or margarin, 1 tablespoon flour, 2.5 tablespoons milk, 0.5 grams salt, white pepper.

Specific production steps:

1. Melt butter;

2. Add flour and stir quickly (you can remove the pot from the stove for ease of operation), so Frying the flour with butter will make it more fragrant;

3. Add the milk in batches (at least divide the milk into 4-5 times), stir thoroughly each time before adding the second milk. There should be no gnocchi;

4. Add milk for the last time, then turn down to low heat and cook for 3-5 minutes. Just add salt and white pepper.

If you add half a tablespoon of cream when adding milk for the last time, the taste of the juice will be more mellow and smooth.

Sauce is a liquid or semi-liquid mixture that can be added directly to food or added during the cooking process. Sauce keeps food moist, adds flavor, and changes its color and appearance. It is also used as a coating on the surface of food, such as white sauce for butter chicken. Liquid condiments such as soy sauce, chili oil, fish sauce, Worcestershire sauce, etc. can be used for both cooking and table condiments. Many sauces are made from a roux that is cooked in a pan for a few minutes.