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Home » Recipes » Kitchen Basics » How-To » How To Make Oat Flour in 1-Minute

Apr 14, 2023

How To Make Oat Flour in 1-Minute

5 from 8 votes
By Dani Spies
Jump to Recipe Print Recipe

This post may contain affiliate links.

Learn how to make light and fluffy oat flour at home in 1-minute with this easy step-by-step guide. Oat flour is a healthy gluten-free flour alternative that has many versatile uses and applications. This simple one-ingredient recipe only requires rolled oats or quick oats. Here are the exact steps you need to follow to make (and cook with!) oat flour at home.

mason jar filled with homemade oat flour

I love experimenting with alternative flour options like almond flour, coconut flour, and oat flour! It’s an easy way to increase the nutrient density of your baked goods while exploring new ingredients.

Oat flour is a nutritious, whole-grain flour that can be used in a variety of healthy baking recipes including pancakes, brownies, cookies, and bread (homemade banana bread, anyone?). It has a mildly sweet, nutty flavor. Plus, it’s naturally gluten-free when made with certified gluten-free oats.

Oats are also very easy to find and are SO versatile. Not only can use them to make baked oatmeal and easy no-bake energy balls but they can also be made into rich and creamy, plant-based milk.

While you can buy oatmeal at most grocery stores, it’s super easy (and way more affordable) to make at home – it literally takes just 1-minute – let me show you how!

rolled oats in a metal measuring cup
Rolled oats are the only ingredient needed to make homemade oat flour.

What is oat flour?

Oat four is simply rolled oats that are blended into fine flour! The best part? Homemade oat flour requires only one ingredient; oats!

  • Rolled oats are ideal. You can use old-fashioned rolled oats or quick oats. I always look for organic oats as I love to focus on high-quality ingredients. Be sure to choose certified gluten-free oats if you want to make gluten-free oat flour.

You can also make oat flour using whole oat groats or steel-cut oats. Because they are both harder in texture than rolled oats, they will need a little extra time in the blender! If possible, I recommend using a high-speed blender since they are more powerful.

Is Oat Flour Gluten Free?

While oats are naturally gluten-free, they may come in contact with gluten-containing grains such as wheat, rye, and barley at the farm, in storage, or during transportation. This is why it’s important to choose certified gluten-free oats if you want to ensure that your oats are gluten-free.

Store your homemade oat flour stored in a glass mason jar.

Is Oat Flour Healthy?

Oat flour is a healthy alternative to wheat flour because it contains a variety of nutrients! naturally gluten-free. Here are some of the health benefits:

  1. Protein – I’m always looking for ways to increase my protein intake! And, oat flour offers 5-6 grams of plant-based protein per 1/2 cup serving (or 40 grams).
  2. High in fiber – Oat flour contains both soluble and insoluble fiber, which can help us to feel fuller for longer!
  3. Rich in vitamins and minerals – Nutrient density is important when eating a healthy diet! Oat flour contains iron, phosphorus, magnesium, and vitamin B6 (just to name a few!).
  4. Gluten-free: Oat flour is naturally gluten-free as long as you use gluten-free oats. This makes it a great option for people with gluten sensitivities or celiac disease.
  5. Affordable – The stress of eating healthy can be REAL! But oats are a simple, nutritious ingredient that is also very affordable. You can often find over 16 ounces of oats for around 3 dollars and they are even less expensive when bought in bulk.

What I love about making my own oat flour is that I always have oats in my pantry. So making healthy, homemade oat flour is never a problem! And since it’s so quick and easy to do, I rarely buy it pre-made.

How To Make Oat Flour at Home

Dare I even call this a recipe?! It’s just so easy! But hey, we all have to start somewhere. Here’s all you have to do.

  1. Place your rolled oats into a blender or food processor.
  2. Blend the oats until they are broken down. This will take about 30 seconds. At first, they will look like smaller pieces of oats. But you will know your oat flour is done when it is finely ground and looks like a fine powder.
rolled oats in a blender
Add rolled oats to a high-speed blender or food processor.
rolled blended into oat flour in a high speed belnder
Blend for up to 60 seconds until you have fine oat flour.

How to Store: Transfer oat flour to a resealable, airtight container. Mason jars work really well! If you plan to make a lot of oat flour, I also really love these POP containers for storing sugar and flour.

How To Substitute for Oat Flour

Because oat flour is lighter in volume than traditional white or wheat flour it’s not a 1-to-1 swap. If you want to substitute oat flour for white or wheat flour you would need to increase the volume of flour used by about 1/3 cup of flour per cup. 

For example, if a recipe calls for 1 cup of white or wheat flour, you will swap in 1 and 1/3 cups of oat flour. It may take a little trial and error – if the batter or dough seems too stiff, add a little more liquid.

Oat Flour Recipes

Recipe: Healthy Spinach Pancakes

Made with oats, oat flour, and baby spinach these beautiful, bright green pancakes are both nutritious and delicious!

Recipe: Banana Bread with Chocolate Chips

Moist, tender a packed with banana flavor – this oat flour banana bread is easy to make and gluten-free. Enjoy it as a healthy breakfast, snack, or dessert!

Recipe: Black Bean Brownies

Seriously rich and delicious, these healthy brownies are made with a combination of oat flour and black beans! Say what?! Such a fun recipe to make and share.

Don’t stop with here! You can use oat flour in a variety of baking recipes to make them gluten-free and add more nutrient density to your recipes. Follow my step-by-step guide below.

homemade oat flour stored in a glass jar
Print Recipe
5 from 8 votes

How To Make Oat Flour in 1 Minute

Learn how to make light and fluffy oat flour at home in 1-minute with this easy step-by-step guide. Oat flour is a healthy gluten-free flour alternative that has many versatile uses and applications. This simple one-ingredient recipe only requires rolled oats or quick oats. Here are the exact steps you need to follow to make (and cook with!) oat flour at home.
Course: how-to
Cuisine: American
Diet: Gluten Free
Author: Dani Spies
Prep Time1 minute min
Total Time1 minute min
Servings: 1 cup
Calories: 307kcal

Ingredients

  • 1 cup rolled oats

Instructions

  • Place the oats into the bowl of your blender or food processor.
  • Blend the oats until they are ground into fine flour with a powder-like consistency. This will take no longer than 60 seconds.
    oat flour blended to a fine powder in a blender
  • Transfer to an airtight container (I like to use a mason jar) and store in a cool dry place.
    oat flour stored in a mason jar

Notes

Storage: Transfer oat flour into an airtight container and store it in a cool, dry place like the pantry or fridge. Homemade oat flour will stay good for up to 6 months.
One cup of rolled oats will yield approximately 1 cup of oat flour.

Nutrition

Serving: 1cup | Calories: 307kcal | Carbohydrates: 55g | Protein: 11g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 2g | Sodium: 5mg | Potassium: 293mg | Fiber: 8g | Sugar: 1g | Calcium: 42mg | Iron: 3mg

Gluten Free, How-To, Kitchen Basics, Recipes, Video

About Dani Spies

Dani Spies is the founder and host of Clean & Delicious; a weekly cooking show on YouTube and a healthy eating blog that celebrates real, whole foods! She takes a holistic approach to health and wellness and is loved for her approachable, down to earth style both in and out of the kitchen.

Learn MoreWork With Me

Reader Interactions

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    Comments

  1. Beryl Wall says

    May 1, 2023 at 5:27 pm

    5 stars
    Thank you I’m a SlimmingWorld member and we have food tasting and it’s would be lovely for us to be able to taste some of your fabulous recipes

    Reply
    • Dani Spies says

      May 2, 2023 at 1:36 pm

      I hope you get to try some, Beryl!!

      Reply
  2. Frank Reina says

    May 5, 2023 at 7:21 am

    5 stars
    One important fact to remember when using in recipes. When weighing your flours say in bread recipes ground oat flour weighs 123 grams per cup. All purpose flour weighs 145 grams. You need to use a bit more oat. Use a scale and you finished product will be even better

    Reply
    • Dani Spies says

      May 5, 2023 at 8:57 pm

      Great reminder! Thanks for sharing.

      Reply

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