Corn flour is made by grinding dried yellow corn kernels into a powder finer than corn meal, adds variety to your baking pantry and makes a welcome addition to baked goods such as muffins and breads. Because it does not contain gluten, yellow corn flour provides a healthy alternative to wheat flour if you follow a gluten-free diet. It also contains a number of essential nutrients, and using yellow corn flour in your cooking boosts your vitamin and mineral intake.