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    Home » Recipes » Kitchen Basics

    Published: May 28, 2020 · Modified: Aug 17, 2021 by Jen Wooster

    How to Make Oat Flour

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    oat flour recipe for pinterest

    A simple way to make gluten-free oat flour at home using whole rolled oats. Oat flour has a slightly nutty flavor perfect for both sweet and savory baking applications. Our favorite is our rich gluten-free banana bread made with oat flour and brown sugar.

    We have created an easy tutorial for you on how to make oat flour in just 5 minutes. You need just 1 ingredient (whole oats) and a blender or food processor.

    Once you have made your oat flour be sure to check out our list of the best oat flour recipes for both savory and sweet ideas.

    oat flour in bowl

    Please read the entire post for tips and tricks to ensure a perfect recipe every time. And don't forget to tag @peelwithzeal on Instagram so we can admire your creation!

    This post may include affiliate links. Please read my disclosure policy.

    I find making oat flour at home easier than buying store-bought. First off, it is much less expensive. I only need to have oats on hand which saves cabinet space.

    I make exactly what I need for the recipe I am making. If I have leftover flour I use it in breading or batters, like for our gluten-free chicken nuggets recipe.

    Jump to:
    • ⏲️ Making Oat Flour
    • 💬 FAQ
    • 💭Substituting Oat Flour in Recipes
    • 🍞Recipes Using Oat Flour
    • 📖 Recipe
    • ⭐Reviews

    ⏲️ Making Oat Flour

    Oats can be made in a food processor or a high-speed blender, like a Vitamix. For small batches, less than a ¼ cup you can use a spice or coffee grinder.

    Your oats should be dry, fresh oats work best so check the best buy date on your packaging.

    whole oats in food processor

    Place 2 cups of whole oats into your food processer. Pulse the oats until they are ground into a powder-like consistency. This process should take about 60 to 90 seconds.

    food processor pulsing oats

    Always stir to ensure that all the oats have been finely ground. Pulse until again, if needed.

    finished oat flour in food processor bowl

    💬 FAQ

    Is oat flour gluten-free?

    Oats do not contain gluten but are often cross-contaminated. Oat flour made from gluten-free certified oats is gluten-free.

    Can you substitute oat flour for wheat flour?

    It is not recommended to substitute oat flour for wheat flour in a 1:1 ratio because it lacks the gluten needed for self-rising recipes. See our section on how to substitute oat flour below.

    How long does oat flour last?

    Oat flours do not last as long as regular flours due to oils in the oats. Stored in an airtight container for up to 3 months.

    What types of oats can be used to make oat flour?

    Use old fashion oats, rolled or steel cut, to make oat flour. Do not use quick cooking oats to make homemade oat flour.

    💭Substituting Oat Flour in Recipes

    1. Do not substitute one for one. Replace no more than ¼ of the total flour with oat flour.
    2. If using oat flour in a gluten-containing (i.e. all-purpose or wheat) recipe that uses yeast increase the yeast by 15%.
    3. When using oat flour in gluten-free baking add additional xanthan gum.
    4. When replacing oat flour for regular flour in recipes go by weight not volume. A small kitchen scale is helpful.
    5. Oat flour substitutes better in recipes that have a binder and fat, like eggs and oil.
    6. As will all gluten-free baking the batter needs to rest before using to allow the flour to hydrate a bit.
    bowl of oat flour with jars of whole oat in back

    🍞Recipes Using Oat Flour

    • Oat Flour Waffles
    • Oat Flour Banana Bread
    • Easy Dog Birthday Cake
    • Dog "Breath Mint" Treats
    oat flour banana bread on cutting board with eggs and bananas

    If you enjoyed this recipe, please leave us a rating or a comment. It helps other wonderful people connect with our food.

    📖 Recipe

    homemade oat flour in a bowl

    Homemade Oat Flour

    Recipe Created By: Jen Wooster
    How to make homemade oat flour from whole rolled oats for use in your favorite recipes. Gluten-free when certified gluten-free oats are used.
    5 from 3 votes
    Print Recipe Pin Recipe Save RecipeSaved!
    Prep Time 5 mins
    Cook Time 0 mins
    Total Time 5 mins
    Course Kitchen Basics
    Cuisine American
    Servings 8
    Calories 73 kcal

    Equipment

    • Food Processor or high powered blender

    Ingredients
      

    • 2 cups old fashioned oats certified gluten-free, if needed

    Instructions
     

    • Place oats in a food processor (or a blender) and pulse the oats until they are ground into a powder-like consistency. This process should take about 60 to 90 seconds.
      2 cups old fashioned oats
    • Stop and stir to ensure that all the oats have been finely ground. Pulse until again, if needed.

    Video

    Notes

    • Scale up or down the recipe as needed
    • Store extra flour in a labeled air-tight container for up to 3 months
    • Recipe is gluten-free only when certified gluten-free oats are used
    • Use whole or steel-cut oats. Quick-cooking or instant oats should not be used to make oat flour. 

    Nutrition

    Calories: 73kcal
    Keyword flour, Gluten Free, gluten free baking, groats, how to make oat flour, oats
    Tried this recipe?Tag us @peelwithzeal so we can see your creation!

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    1. Christa says

      June 09, 2020 at 6:36 am

      5 stars
      This was a life saver! Thanks for the quick tutorial.

      Reply

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    My name is Jen and I am the recipe developer, writer, and photographer around here. Since being diagnosed with celiac disease over 10 years ago I have been slowly curating a recipe box full of gluten-free goodness. I adore vegetables, crave chocolate, and I am always up for an adventure.

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