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How to Make Homemade Oat Flour

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Making your own oat flour at home is easy, economical and healthy.  Oat flour is a great option for gluten free baking or to simply add more whole grains to your baked goods.  I use this homemade oat flour every week to make waffles and pumpkin chocolate chip cookies.

Oat Flour in a bowl

Why should I make my own oat flour?

Gluten free flours such as almond, coconut, teff and all-purpose baking mixes can make gluten free baking expensive.  Oat flour can be expensive too, especially if you are buying gluten free oat flour.  But making your own oat flour is very economical since rolled oats are very affordable.  And bonus: making oat flour takes less than 5 minutes.

Note: oats are naturally gluten free, but are often processed on the same equipment as wheat.  So, if you need to avoid gluten completely, make sure to purchase gluten free oats.

How do I make homemade oat flour?

Oat flour is one of my favorite flours for gluten free baking. And it is ridiculously easy to make at home.  There are two steps: add oats to a blender or food processor and grind into a flour.  Done.

Whole oats in a blender

I’ve learned that grinding 2 cups of oats at a time is the perfect amount.  Once you’ve added the oats to your blender or food processor, gradually turn it up to high and let it go for a few minutes.  The finer you can grind the flour the better.  I have found you get the finest grind in a blender, but a food processor will get you there too, it just takes a few minutes longer.

Oat flour in a blender

There is a lot of conflicting information out there about how much flour a cup of oats make, but generally one cup of oats makes one cup of flour.  If you’re into weighing your ingredients, a cup of oat flour is approximately 110 grams.

How do I use Oat flour?

Oats tend to absorb a lot of moisture, so oat flour usually cannot be swapped 1:1 with wheat flour in a recipe.  Oat flour is often combined with other gluten free flours to achieve perfect baked goods.  You can generally substitute 1/2 the wheat flour in a recipe with oat flour and use a gluten free all-purpose flour or almond flour to substitute the rest.

Get started by trying these recipes using oat flour:

Pumpkin Chocolate Chip Cookies
Vegan Oat Flour Waffles
Gluten Free Chocolate Chip Cookies

Oat flour in a measuring cup

Have you used oat flour before?  What is your favorite recipe that uses oat flour?

Oat flour in a measuring cup
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5 from 3 votes

How to Make Oat Flour

Making your own oat flour at home is easy, economical and healthy.  Oat flour is a great option for gluten free baking or to simply add more whole grains to your baked goods.
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Prep Time5 mins
Total Time5 mins
Course: Dessert
Cuisine: American
Keyword: gluten-free, Oat flour
Servings: 2 cups
Calories: 307kcal
Author: Maggie

Equipment

  • Blender or Food Processor

Ingredients

  • 2 cups rolled oats

Instructions

  • Add the oats to your blender or food processor and gradually turn it up to high. Let it go for a few minutes.  The finer you can grind the flour the better.  I have found you get the finest grind in a blender, but a food processor will get you there too, it just takes a few minutes longer.
  • Use as directed in your recipe. Enjoy!

Nutrition

Calories: 307kcal | Carbohydrates: 55g | Protein: 11g | Fat: 5g | Saturated Fat: 1g | Sodium: 5mg | Potassium: 293mg | Fiber: 8g | Sugar: 1g | Calcium: 42mg | Iron: 3mg
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Disclosure: This post contains Amazon affiliate links that earn me a small commission, at no additional cost to you. I only recommend products I personally use and love or think my readers will find useful.

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Previous Post: « Pumpkin Chocolate Chip Cookies (Vegan & Gluten Free)
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Welcome!

Maggie Wescott Cooking
Hi! I’m Maggie and I’m so excited you stopped by! I am a vegetarian chef and bring my expertise and love for food, health and wellness to this little corner of the blog world. My focus is on dietary restricted eating, especially vegan and gluten-free cuisine, and creating recipes that anyone can enjoy while improving their overall health. Read more about Maggie…

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