Do you know What is Buttermilk and Custard. If you are looking for the definition of Buttermilk and Custard or want to know what is Buttermilk and Custard?, then this is where you will fetch your answers. Well, in simple terms Buttermilk is a liquid made by the process of churning butter out of cream. While A dessert or sweet sauce made with milk and eggs, or milk and a proprietary powder. Both these products are unique in their own ways. Buttermilk is a Not Available colored dairy product and Custard is Yellow colored. The food gets it color dependent on the ingredients used and the preparation methods employed. Sometimes artificial food colors are added to give the dairy product, a gourmet look. Apart from their color what distinguishes them is their flavor and aroma. Buttermilk bears Sour flavor with a Sour smell aroma whereas Custard has Thick flavor and a Milky and Sweet aroma. The color, flavor and the aroma of these products depict their origin. Buttermilk originated in India, whereas origin of Custard is traced back to France.