Measure how many oats you need to make enough flour. Don’t use too little!

Place old-fashioned rolled oats or steel-cut oats into a blender (a food processor can be used for rolled oats. It’s not recommended for steel-cut).

Blend or pulse until you are left with a powdery flour. This will take about 1 minute, depending on the amount of oats used and how powerful your appliance is.

Don’t over-blend! If needed, stop and mix the oats with a spoon so they are ground evenly.

Use your homemade oat flour in any baking recipe. Store any leftovers in a cool, dry, and dark place in a sealed jar or container.