How to Make Oat Flour

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Did you know you can make your own oat flour for pennies on the dollar vs store bought? So many recipes now call for flours much different than the All-Purpose or Whole Wheat that we are used to.

how to make oat flour

Almond flour, rice flour and oat flour have become common among ingredient lists.  If these flours are not something you regularly use,  it can be pricey to buy a bag that you may only need for a small amount.

You don’t have to spend a lot of money because you already have everything you need in your pantry to make your own oat flour, simply and inexpensively.

While oats are naturally gluten free, they can be cross contained depending on where they were processed. If you are looking for certified gluten free oat flour, all you need to do is make sure the oats you purchase say “certified gluten free” and then you can make your own gluten-free oat flour at a fraction of the cost.

Need a delicious way to put this oat flour to use? Check out the Chief Mom’s Oatmeal Raisin Cookie Dough Bites. They are simple to make (no bake!) and perfect for a treat in the lunch box.

How to Make Oat Flour

  • Author: MOMables
  • Cuisine: How-To


  • 1 cup rolled or old fashion oats
  • Food Processor or high rpm blender


  1. Place the oats into the bowl of your food processor.
  2. Pulse the oats until they are ground into a powder-like consistency.
  3. Depending on the speed and power of your food processor, this process should take 60 seconds or less.
  4. Stop and stir to ensure that all the oats have been finely ground.
  5. One cup of rolled oats will yield approximately 1 cup of oat flour.
  6. Store unused portion in air tight container.


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About Alison Bickel

Alison lives in the heart of the mid-west where, along with her husband, they raise their three boys. Whether it’s in the garden, the kitchen or tagging along on her boys’ latest adventure she looks for the simple beauty in everyday from behind her lens. On her blog, ‘this homemade life’ Alison shares tales of mothering, her passion for homemade food and obsession with farmer’s markets.