How to Make Your Own Oat Flour

Like to cook healthy food at home? Then you might use one of my favorite ingredients – oat flour. Oat flour is great because it is a hearty, whole-grain flour. It blows away typical white flour when it comes to health benefits. (Oats contain soluble fiber which has been shown to reduce bad cholesterol and improve heart health, which is why Cheerios are promoted as good for your heart.)

Oat flour also makes a great substitute for whole wheat flour, especially if you are allergic to wheat! Or you can mix oat flour and wheat flour together for a healthy combo!

Whatever you do, you can easily make your own oat flour at home! Here’s how:

You need:

  • Rolled oats
  • Blender

This is a very simple process:

1. Dump some rolled oats in the blender.

oats in blender

2. Blend.

blending oats in blender

Then just keep blending until the oats have turned into powder, and ta-da! You now have oat flour!

oat flour

That was extremely simple and easy, and there you have a healthy, 100% whole grain oat flour.

(Aside from cooking bread and making your own energy bars, it could even be formed into a paste to soothe a sunburn!)

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15 Comments so far

  1. aaron on February 16th, 2009

    i started doing this when making home made bean burgers. i found i was using a lot of bread crumbs and/or or white flour to thicken up my mixtures, so i switched to the oat flour as a more nutritious (and tasty) solution.

  2. Charlene on May 9th, 2010

    Thanks for the information – I was looking at a recipe for oatmeal cookies that called for oat flour. Now that I know how to make oat flour I can make them right away!! Love your website – lots of terrific info!

  3. Liz on June 24th, 2010

    Can this oat flour be used exactly like wheat flour?

  4. Levi on June 25th, 2010


    Yes, with an asterisk.

    You won’t get the exact same end result, so if you’re making oat bread or something, do a test batch first to see if you like it.

  5. Verlene Harrell on July 30th, 2010

    Thanks for the information on how to make oatflour. Now I can make my oatmeal panckes.

  6. jody on August 15th, 2010

    This is great for people on gluten free diets. Great source of fiber and a whole lot cheaper than buying oat flour!!

  7. Evelyn on October 5th, 2010

    I am a diabite and they say not to use wheat flour. will oat flour be ok ?

  8. Levi on October 6th, 2010


    I’ve heard that oat flour is fine for diabetics, although I’m not a doctor.

  9. cynthia on November 29th, 2010

    hey thats cool! i think that i will try it sometime nad try to make some pitas or a loaf. thanks

  10. janet on December 1st, 2010

    Have you ever tried making Oat Milk? I have used it as a replacemnet for regular milk and as a less expensive alternative to rice and soy milk. By cooking 1/3 cup rolled oats in 7-10 Qts of filtered water, cooling it and then running it through a blender ( and strainer if you like) with a bit of vanilla, I have found it makes a refreshing drink served cold and a warm, liquid “comfort food” served hot!

  11. Good Eater on December 6th, 2010

    This seems too simple! I was just about to buy some oat flour for a blueberry muffin recipe and decided to see if there was an easy way to make my own oat flour. Thanks for the tip. I’m going to give it a try today.

  12. Christine on February 6th, 2011

    When using oat flour in recipes, do you need to use XANTHAN gum (or other) to replace the gluten properties? (like in cakes, breads or cookies)

  13. Levi on February 8th, 2011


    Kind of depends. I use oat flour mainly for homemade protein bars and such. In that case, it doesn’t really make a difference.

    I use it in bread too, but that’s usually in combination with wheat flour.

    For making a typical bread, cake, or cookie, (but mainly for the bread and cakes) and using oat flour to replace wheat flour, you probably will want to use xanthan gum.

    Here’s a good discussion on a more food and cooking-oriented website for further reading:

  14. Rena on February 26th, 2011

    How much Xanthan gum do you need per cup of oat flour?

  15. Ben Serna on May 17th, 2011

    Thanks on how to make oat flour.. saved me from buying at the store! Also thanks to Janet on making Oat Milk!! Been making my own soy and rice milk.. now Oat Milk sounds really good. Thanks to Aaron too for the tip on bean burgers.. need a good recipe, though. Got one?? Thanks!

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