[header] How to make oat flour [title] Measure out a portion of oats. [step] The type of oats traditionally used for oat flour are called " rolled oats. " these can be bought for cheap at many grocery stores, but are not always available. 
Luckily, you can use instant, quick-cook, or steel cut as well--the only difference is grain size, and you're grinding them all up anyway. [substeps] Don't use oats that have been flavored in any way, as this flavor will work into your final dish.