Custard powder (also known as egg powder, custard powder) is a food spice powder. It is light yellow powder with rich milk and fruit flavors. It is easy to dissolve. It is composed of a combination of loosening agents, stabilizers, edible flavors, edible coloring, milk powder, starch and other food additives. Mix custard powder with water to make custard sauce.Custard powder can be used to make custard sauce, custard filling, cheese cake and other soft, fragrant and smooth hot and cold desserts (such as cakes, egg rolls, stuffing, bread, fruit pies, sandwiches, puddings, tarts and other pastries).Later, Hong Kong chefs began to use it in Chinese cooking. Adding custard powder to the paste can produce bright yellow; it can also make it more crispy and shape the product: adding custard powder to the puffed paste will make the product crispy but not soft after frying; adding custard powder to thickening can produce stickiness, have a good thickening effect and good transparency of the sauce.