Misu

Misu () is a beverage made from Korean traditional grain powder, misu-garu (; "misutgaru"; ""misu" powder") which is a combination of 7–10 different grains. It is usually served in the hot summer days to quench thirst or as an instant nutritious drink for breakfast or as a healthy snack.
In a Joseon Dynasty (an ancient Korean Dynasty) recipe book, misu was mentioned as stir-fried barley ("gu"). Gu was a delicacy of that time and easy to serve as one went to travel.
Misu is made of glutinous rice and other ingredients such as barley, yulmu ("Coix lacryma-jobi" var. "ma-yuen"), brown rice, black rice, black soybeans, corn, white bean, millet, and sesame seeds which are ground, roasted and/or steamed, then mixed together. Misugaru is commonly added to water or milk and stirred to make a drink. Sugar or condensed milk can be added as sweetener. It is known for health benefits such as being high in protein, vitamins, calcium, magnesium, molybdenum, folate, and selenium, as well as being a dieter's drink as it is quite filling but low in calories.