Do you know What is Eggnog and Buttermilk. If you are looking for the definition of Eggnog and Buttermilk or want to know what is Eggnog and Buttermilk?, then this is where you will fetch your answers. Well, in simple terms Eggnog is a Dairy based beverage, made from milk, sugar, and whipped Eggs. While Buttermilk is a liquid made by the process of churning butter out of cream. Both these products are unique in their own ways. Eggnog is a Cream colored dairy product and Buttermilk is Not Available 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. Eggnog bears Creamy, Thick and Vanilla flavor with a Sour smell aroma whereas Buttermilk has Sour flavor and a Sour smell aroma. The color, flavor and the aroma of these products depict their origin. Eggnog originated in England, whereas origin of Buttermilk is traced back to India.