Custard creams are a popular biscuit snack throughout the United Kingdom and other parts of the world. While "custard creams" is the most common name, there are several synonyms for this type of biscuit. Some people refer to them as custard biscuits, custard cookies, or even simply custards. In France, they are known as craquelins, while in Japan, they are called kusutado kuriimu or simply kusutado. Regardless of the name, the key ingredient in custard creams is a creamy, vanilla-flavored filling between two crisp, biscuit layers. These biscuits are a tasty and versatile snack that can be enjoyed with a cup of tea or as an on-the-go treat.