Add the oats to the bowl of a food processor or blender. 

Pulse the oats and then process them on high speed until they are ground into a fine powder. 

Stop and stir to ensure all the oats are evenly processed into a fine powdery texture. 

Use as needed or store in an airtight container or zip bag for up to 3 months in the pantry and up to 6 months in the freezer.