Custard is a creamy and smooth dessert sauce or filling made by combining milk, sugar, and eggs. It is commonly flavored with vanilla and thickened through gentle cooking or baking. Custard is versatile and can be enjoyed on its own, used as a base for other desserts like pies or tarts, or served alongside cakes or fruit. Its rich and luscious texture makes it a beloved component of many sweet dishes, adding a delightful indulgence to any dessert experience.