Salad Dressing
1.
Put the egg yolk in a ceramic container, add salt, sugar, mustard sauce, pepper
2.
Slowly stir evenly with egg soak, add a small amount of vegetable oil, and continue to stir while filling the oil. When it reaches the consistency, add cold water, white vinegar, and lemon juice.
3.
Continue to beat until the oil is added and it becomes a paste and evenly.