oat flour

Oat flour is made from finely ground oats, a cereal grass grown for its starchy grains. While primarily used as livestock feed, oats are also processed for human consumption, particularly as breakfast foods like oatmeal. Oat flour itself is not ideal for bread but is used in cookies and puddings. It is a good source of carbohydrates, protein, fat, calcium, iron, and B vitamins.12

Flour, in general, is ground cereal grains or other starchy plant parts used in food products. Wheat flour is most common for baked goods requiring a spongy texture. Other flours can be made from barley, rice, rye, and even ingredients like chickpeas and potatoes.2