Place the oats in a food processor or high-powdered blender and blend oats into a fine powder. This takes about 20 to 30 seconds.
Shake the oats to make sure all the oats get blended into a fine powder. Do not over blend or the oat flour could get clumpy.
Notes
1 cup of oats makes just over ¾ cup of oat flour.
If making a large batch of oat flour, blend the oats in small batches (less than 1 ½ cups at a time) so that the oats all get blended properly. If you add too many oats to the food processor or blender, all the oats may not get blended evenly.
You can use a medium-sized strainer to sift the flour to make sure there aren’t any large clumps of oats left after blending but it’s not really needed if you’re blending the oats in small batches.
Nutritional information is for ¼ cup individual serving.
To store: Store oat flour in an air-tight container at room temperature for up to 3 months.
To freeze: Freeze oat flour in an air-tight container for up to 6 months.