Preparation of confiture de lait involves the mixing of whole milk with one half its weight in sugar, followed by brief boiling of the mixture and several hours of cooking over low heat. The result is a smooth, caramelized sauce with a medium brown color, thick enough to be eaten with a spoon.
Confiture de lait is used as a sweet condiment or spread for bread or pastries, or as an accompaniment for various other foods. Sometimes additional flavoring such as vanilla or brandy is added to the sauce. The taste is very similar to that of the soft caramels used to coat apples during Halloween in the United States, but the texture is much softer than that of caramel candies.