How to Make Oat Flour

Today we’re making homemade oat flour and sharing recipes to help you put this gluten free flour to use. You don’t have to spend a lot of money because you already have everything you need in your pantry to make your own flour, simply and inexpensively.

Since it’s always more fun to watch how things are made, I had this recipe made into a video – see how easy it is to make here!

What is Oat Flour?

Oat flour is made from ground oats. Simple and sweet right?

But don’t be fooled, this flour is capable of making some incredible baked goods and breakfasts. We’re talking light and fluffy breads, pancakes, waffles, golden brown cookies, all the essential things.

Is Oat Flour Gluten Free?

The short answer is YES! Both pure rolled oats and flour made form them are gluten free. However, if the oats are processed in facilities with wheat and other grains, there’s a good chance they’ll contain traces of gluten.  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 flour at a fraction of the cost.

No need to worry, there are multiple sources of gluten-free oats and flours this one is my favorite. Or you can take matters into your own hands, like we’re doing today, and make homemade oat flour!

cup of flour and oats

How to Make Oatmeal Flour

Making oat flour is wonderfully simple, and I have a hard time figuring out why people haven’t caught on sooner. Homemade Oat Flour has all the benefits and quality of store-bought, and it’s way less expensive. All you need is a blender/food processor and old-fashioned oats.

  1. Add 1 to 2 cups old-fashioned oats to a blender or food processor.
  2. Place the lid on, and give it a go on high speed until the oats turn into a fine powder.
  3. Transfer to an air-tight container and store for in the pantry for about 3 months.

To make oats flour, I always use my Blendtec. Now, you probably already know I love using my Blendtec for my favorite smoothie recipes but it’s the by far the best tool for making your own flours as well!

If you don’t have a Blendtec yet, you’re in luck! If you use the special code LF25OFF to get 25% off!

Oat Flour Recipes

Oat flour has a 1:1 ratio for regular flour making it one of the best gluten-free flours available. You can use it for pancakes, muffins, waffles, and quick bread recipes with delicious results. It’s nutty flavor harmonizes with ingredients such as honey, vanilla, cinnamon, and nutmeg.

Applesauce Bread

A quick, comforting treat you can whip up with basic pantry staples. It’s super moist and great a breakfast or packed into lunches.

Lemon Poppyseed Zucchini Muffins

Super moist lemon poppy seed muffins with zucchini are healthier than the coffee shops and just as tasty!

Cheddar Apple Sausage Muffins

Try this savory breakfast muffin for a change. Loaded with sausage, chopped apple, and cheese, it’s an incredible breakfast you can enjoy on the go.

Healthy Banana Oatmeal Muffins

No need for mixing bowls because these muffins are made in the blender! They’re light, moist and everything a banana breakfast muffin should be.

It doesn’t stop with these delicious recipes! You can use this flour in so many baking recipes to make them gluten free! But let’s get started with the complete instructions for homemade oat flour.  And if you are looking for more gluten free recipes, be sure to check out our grain free meal plans. You’ll get fresh recipes every week that are gluten free and unbelievably delicious!

How to Make Oat Flour

Simple instructions to make gluten free oat flour. Perfect for baking!

  • Author: MOMables
  • Prep Time: 2 minutes
  • Cook Time: 3 minutes
  • Total Time: 5 minutes
  • Yield: 1 cup 1x
  • Category: How-to


  • 1 cup rolled or old fashion oats


  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.


  • Serving Size: 1/4 cup
  • Calories: 75
  • Sugar: 0g
  • Sodium: 0g
  • Fat: 0g
  • Saturated Fat: 0.3g
  • Trans Fat: 0g
  • Carbohydrates: 13.5g
  • Fiber: 2g
  • Protein: 2.5g
  • Cholesterol: 0g

Keywords: oatmeal flour, gluten free baking

About MOMables - Laura

Mom to 3 kids, obsessed with coffee, meal planning, and helping you cook fresh meals for your family fast!

62 thoughts on “How to Make Oat Flour”

  1. Marie says:

    Would like to make pound cake with oat flour. If recipe calls for 1-3/4 cups all purpose flour how much oat flour do I use?

    1. You would use the same amount, except, you should expect your pound cake to be much denser not light and airy.

  2. Elaine says:

    This just dawned on me – I googled making oat flour. thank you for this information. I am ready to try it, and hoping I can buy more oats if I can’t buy flour and bread in the supermarket. NZ has buy outs of bread and flour too!! If you are not in the shop at the time shelves are filled you need to go back, and who wants to do that just now with covid 19 around!! keep safe.

    1. Glad you found this helpful Elaine!

  3. Baygirl says:

    2020-03-27 Forgot dog buscuits while grocery shopping today, and googled instructions on how to make homemade dog biscuits. Since our Covid-19 is here, I prefer to avoid another trip to the grocery. Your idea suited our recipe 100% Thanks so much. I had bought lots of Large Flake Oats on sale, and now I have yet another good use for them! Cheers from Ottawa Canada.

    1. I’m so glad this worked out well for you! Those are some lucky pups!

  4. Rolyn says:

    Can I make oatmeal smooth porridge with the flour for a 6 months baby?

    1. that’s how I made baby oat porridge!

  5. Kemmy says:

    Can I use quick cooking oat instead of rolled oat?

      1. Emanuele Guidetti says:

        Oh thank you very much for all your advice and helpful support

  6. Jamie Warn says:

    You just saved me! Need oat flour for GF apple crumb cake I am making my sister and didn’t have any oat flour, but I do have rolled oats and a food processor

    1. Woohoo! Enjoy the apple crumble.

  7. Lisa says:

    Thanks so much for the tip! It took all of 10 seconds to make.

  8. This page definitely has all of the information and facts
    I needed about this subject and didn’t know who to ask.

  9. Judy Kaspar says:

    Can I make rice flour the same way as making oat flour? And also, is there an article with instructions for coconut flour? I want to make treats for your two dogs that are healthy.

    1. Stephanie Schneller says:

      Yes, you can make rice flour the same way you make oat flour. There are no “instructions” to coconut flour but it’s not the type of flour that can be substituted 1:1 with regular flour. Coconut flour is the type of ingredient you use following a recipe.

  10. Felipe says:

    I make the oat flour and mix cacao powder and sugar, and then whip it in the Nutribullet for a quick drink with Almond milk, it is sooooo good! In Mexico its already made its called Avena Rivero, but when I can’t go to Mexico I make my own, its that simple. Very healthy drink.

    1. Emilie Hebert says:

      That sounds so delicious! Great idea!

  11. Berit Hall says:

    Just used my Magic Bullet to grind my oat meal in an attempt to have flour…within 15-20 second I had flour, just like the store bought, and for a fraction of what I would have paid at the store! Why did’t I think of this before??? Thank you for posting this suggestion!
    My life will be so much easier now, and less expensive…..

    1. MOMables says:

      It really is the best tip! I’m so glad you can now make your own. :)

  12. dave says:

    Can I use steel cut oats to make oat flour (instead of rolled oats)?

    1. MOMables says:

      Yes you can. just make sure they are finely ground.

    2. G.baritt says:

      Yes, there is nothing different, steel cut are oats that have been put through a special machine that orients the groats in one direction where they the ends cut off

  13. Jennifer says:

    Can I use Oat flour like white flour? I do not like to use white flour because of the processing.

    1. MOMables says:

      not in all recipes Jennifer.

    2. Ashley says:

      For most baking needs. Yes! I use it for cooking muffins, cookies and bread and it comes out fanatastic. I also use baking soda to help with rising it.

  14. nancy says:

    Great ideas. Thanks. New to gluten-free cooking.

  15. Willietta says:

    I began grinding my oatmeal and love it. I use it in place of flour. I make a stack of pancakes and refrigerate them. I also roll skinless chicken in it and put 2 Tbs. of coconut oil in skillet and fried. Delicious!!!!! I even fried fish in it. Never going back to regular flour. My husband even love it.

  16. Natalie says:

    I ground quick oats to use for flour to make chocolate chip cookies. They spread out completely flat, except for the chips that stayed in the center. After adjusting the cooking time with no success, I stirred in some quick oats (un-ground) to tighten up the dough some, That seemed to help. Any suggestions? Some baking powder maybe?

    1. Cathy says:

      You may need to adjust: sugar, fat, flour, or other ingredients. Somewhere there is a graphic showing which ingredient causes which problem. …too flat, too crunchy and so on. Sorry I couldn’t be more specific at this time.

      1. Sarah says:

        You might want to try adding a bit of corn or potato startch.

        I am excited to try making my own oat flour. I’m trying (slowly) to get me and my oldest son on a gluten free diet.

      2. Lisa says:

        Could it be because she used quick oats and not just regular oats?

  17. Toni says:

    Thanks for the simple instructions. I am gluten intolerant. Oat flour is so expensive but great because it is lower in carbohydrates. I am definitely going to try this.

  18. Dori Berg says:

    Another great way to grind your oats into flour is to use a coffee grinder. I have used mine often to make oat flour. This would not work if you need to make a larger quantity but if you are just using oat flour for one recipe it will work just fine.

  19. Hannah says:

    Can you use a magic bullet for this? If so, which blade? There is a flat one and then one with prongs that stick up in the air.

    1. MOMables says:

      yes you can use your magic bullet. Use the one that chops.

    2. Nikki says:

      I use my magic bullet for this yes. And I use it with the flat blade and it’s flour in just a few seconds.
      Good Luck!

    3. Cathy says:

      My coffee grinder has one end curved up and the other down, and it just made very nice flour.

  20. Leah says:

    How long does the oat flour last in a air tight container in the pantry?

    1. MOMables says:

      Pantry: 2months Freezer 4months

  21. Lou says:

    Can same be accomplished with a blender??? Or is the food processor a must??

    1. MOMables says:

      You can do this in a blender too. Just give the blender a good shake.

      1. Queeneth says:

        Thank you u just answered my question

  22. Cassie says:

    Hi Elaine.

    Thank you for the great advise, however there is a huge error on your page, oats are absolutely NOT gluten-free. They along with Barley, Rye and Wheat are the main four gluten grains. Other grains include Kamut and Spelt.

    Please look into this as it could be potentially fatal for a coeliac.

    1. Kaj says:

      Certified gluten free oats DO NOT contain gluten. That is why they say very plainly on the package “certified gluten free”.

      People with celiac disease can be sensitive to oats even if the oats are certified gluten free. There is a certain protein in oats that can cause the same reaction in patients with celiac disease as gluten does, even if the oats are certified gluten free.

      The best thing to do is ask the person. If the food item is for a surprise, the prudent thing would be to avoid the oats so you don’t risk causing them undue problems.

    2. MOMables says:

      Cassie, certified GF oats do not contain gluten. They are, however, often cross contaminated in production facilities which is why if someone suffers from celiacs disease they should check the packaging.

  23. Elaine says:

    I make and use oat flour for pancakes and waffles.

    Recipe :

    2 cups of oat flour, 2 eggs, tsp. baking powder, 1/2 tsp. cinnamon, 1 tsp. vanilla, buttermilk (you can use regular milk as we’ll) the amount of milk is between a pint and pint and a half. If making waffles at a tbsp. of melted butter. Add pecans, walnuts, blueberries or what ever your heart desires. I add ground flaxseed to mine as we’ll. You will never go back to boxed mix again. Almond milk will NOT brown pancake or waffle. Oh, I ground my own oatmeal. If you refrigerate, it will thicken. Just thin with any liquid. Eggnog is great too!

    1. MOMables says:

      I MUST test this out Elaine! thank you!

    2. Anne says:

      What do you mean almond milk will not brown the pancakes?

    3. MYO-MI says:

      Love this recipe….added it to my favorites list….thankyou very much…MYO-MI.

  24. joe says:

    One cup of rolled oats will yield approximately LESS THAN 1 cup of oat flour.
    1 cup rolled oats = “approximately” 3/4-1 cup oat flour

    1. James says:

      I tried making my own oat flour for the first time. I used an immersion blender on the high setting, which worked quite well for 1/2 cup proportions. I used 1 1/3 cups of quick cooking rolled oats and got 1 1/3 cups of flour minus a little more than 1/2 tablespoon. So for 1 cup of flour, if you want to be precise, I recommend 1 cup of rolled oats plus a rounded teaspoon.

      1. mike says:

        how many gram this rounded teaspoon?

  25. Shautel says:

    I used quick cooking oats. Is there a difference? I am also going to store in Freezer..

    1. Lori says:

      I JUST made some lemon shortbread cookies with quick cooking oats turned into flour using my vitamix and they were DELICIOUS!!! Worked like a charm.

    2. Eddie says:

      The difference between quick cooking oats is that they are typically rolled out thinner and steamed slightly longer in the processing facility as opposed to standard “old fashioned” oats. Same oat so use it as any non quick cooking oat.

  26. Love this tip! We make our own almond flour the same way!

    1. Juanita Miller says:

      Do you use the ground almonds made into flour the same as you would use flour or oatmeal flour?Thank you so much for this hint at the almond flour is very expensive.

      1. MOMables says:

        Yes, you can finely grind almonds to make into almond meal, although it’s hard for it to have a uniform consistency when ground at home.

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