What does custard mean?
Custard is a classic sweet preparation built on a simple base of milk or cream, egg yolks, and sugar, gently cooked until it thickens. In its most familiar form it is a smooth, pourable sauce served hot or cold alongside puddings, pies, and fruit desserts — especially beloved in Britain, where few puddings are considered complete without it. When baked or chilled, the same mixture sets into a firmer dessert: custard tarts, crème caramel, and crème brûlée are all members of this family. The word derives from the old French 'croustade' or 'crustade', a pastry containing a filling, reflecting custard's long history in European cooking. Related terms include 'custard apple', a tropical fruit, and 'custard powder', a convenience product popular since the nineteenth century. Despite its homely image, custard demands careful technique — too much heat curdles the eggs — which has made it a traditional test of a cook's patience and skill.
nounA sweet dish made from a cooked mixture of milk or cream, egg yolks, sugar, and flavouring such as vanilla; it may be soft and pourable (as a sauce) or set firm when baked.
- A pourable sweet sauce of milk, eggs, and sugar served with desserts.
- A set or baked dessert made from the same mixture, often in a pastry shell.
"She poured warm custard over the apple pie."
"He stirred the custard slowly until it thickened enough to coat the back of a spoon."
"For pudding we had a slice of rhubarb crumble with a generous helping of hot custard."
The plural refers to multiple individual servings or varieties of custard-based desserts, e.g. different flavours of set custards.
"The patisserie displayed an array of custards, each flavoured differently."
The word custard comes from an old medieval French pie called a 'crustade' — meaning the beloved British dessert is, etymologically speaking, just a fancy name for something you'd find inside a crust.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of custard
The word 'custard' entered English in the late Middle Ages, derived from the Old French 'croustade', itself related to 'croûte' (crust), describing a pastry case with a filling. Over time the term came to refer specifically to the sweetened egg-and-milk mixture rather than the enclosing crust. It shares this origin with words built around 'croûte'/'crust', linking it etymologically to the broader vocabulary of baked goods rather than to other dairy terms.
How custard is actually used
'Custard' is chiefly British in its everyday use as a dessert accompaniment; Americans more often say 'crème anglaise' for the pourable version. The word can also appear in compound forms like 'custard apple' (a fruit) and 'custard powder'.
Easily confused with custard
Mustard is a sharp-tasting condiment made from mustard seeds, whereas custard is a sweet, milky dessert sauce — the two are unrelated despite similar spelling.
Flan is a set, caramel-topped baked custard dessert; 'custard' more broadly covers both pourable sauces and any set milk-and-egg dessert.