It has a corn-like, slightly nutty flavor. The whole grain is used for hot cereal, side dishes, stuffing, or in a salad. Puffed millet can be eaten as a cold cereal. It can be combined with other gluten-free flours and used for baking. Millet flour can become rancid easily, so only buy what you will use quickly. Store it in the freezer or refrigerator. It contains protein, fiber, vitamin B6, folate, iron, magnesium, riboflavin, thiamin, and zinc.