rolled oats, old-fashioned oatmeal, or steel cut oats
Directions
Place 1 cup of rolled oats in a blender or food processor. Pulse on high until it the oatmeal becomes the consistency of flour, approximately 30 seconds to 1 minute.
Repeat until you have as much flour as you need.
Notes
If you don’t have a very powerful blender, let the blender come to a rest between pulsing it and use a spoon to stir the oats.
Recipe by Premeditated Leftovers™ at https://premeditatedleftovers.com/?p=565