How to Make Oat Flour
Published Jan 22, 2020, Updated Aug 28, 2021
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Need oat flour for a recipe? It’s so easy to make your own oat flour at home. The only things you need are rolled or quick oats and a food processor or blender.
Clearly I’m an oat lover! I share monthly baked oatmeal recipes, overnight oats have been an obsession of mine for years and I love enjoying a creamy oat milk latte. And if you’ve made some of my baking recipes, I’m sure you’ve seen oat flour pop up in the ingredient list more than once.
You can pick up store bought oat flour in most grocery stores, but it’s so simple to make, I thought I should share how to make your own oat flour at home.
Health Benefits of Oat Flour
Like rolled oats, oat flour is high in fiber, vitamins and minerals. It’s a nutrient dense source of carbohydrates – meaning yes, it’s still a carb like regular white flour, but it’s packed with nutrients and not empty carbs.
Oats are naturally gluten-free so if you need a gluten-free flour, this could be your substitute. Although, it’s important to note that oats are commonly cross contaminated with gluten so be sure to grab oats that are labeled as gluten-free if you have an intolerance. If you have celiac disease it’s really important to make sure the oats you’re using are certified gluten-free and not processed in the same facility with other grains that do contain gluten.
How to Make Oat Flour
Making oat flour at home is so easy. Just measure out quick or rolled oats and put them in a high speed blender or food processor.
Process until the oats are ground into a fine, flour consistency. That’s it!
Super easy, right?!
1 cup of oats will yield a scant 1 cup of oat flour. If you need 1 cup of oat flour for a recipe, I recommend processing 1 cup + 2 Tablespoons of oats.
How to Store Oat Flour
You can use your oat flour right away or store it for later use. To store, keep in an airtight container (I like to use a large mason jar) and keep it in a dark, cool place. Your pantry works, but keeping it in the fridge or freezer will provide ultimate freshness. The flour should stay fresh and last for about 3 months.
What do You Use Oat Flour For?
I’m sure you’re wondering what can you use oat flour for. I personally love using it for baked goods including cookies, muffins, quick breads, brownies and more! Occasionally oat flour will be the only flour in a recipe (usually if only a small amount of flour is needed), but in most cases you’ll see oat flour combined with whole oats or another flour like gluten-free all-purpose flour or almond flour. You can also use it for savory recipes where small amounts of flour is used as a thickener or binder. I use it in my tempeh veggie burgers.
Swapping Oat Flour for All-Purpose Flour
Oat flour has a light texture and mild flavor that’s similar to whole wheat flour, but it can not be swapped one-for-one with all-purpose flour. If a recipe calls for all-purpose flour you can substitute oat flour for up to 25-30% the amount of the regular flour and still achieve good results. That said, you can certainly experiment with using oat flour for different recipes, but I recommended looking for recipes that specifically call for oat flour, especially if you’re new to using it. Some of my favorites are below.
Recipes that Use Oat Flour:
How to Make Oat Flour
- 1 cup old fashioned rolled oats, or quick oats
- Place oats into a food processor or high-powered blender and process until oats are ground into a fine, flour consistency.
- 1 cup of oats will yield a scant 1 cup of oat flour. If you need 1 cup of oat flour for a recipe, I recommend processing 1 cup + 2 Tablespoons of oats.
Nutrition information is automatically calculated, so should only be used as an approximation.
I had no idea it was this easy! Totally trying this instead of purchasing it!
I know, it’s crazy how easy it is to make at home! 🙂
This is SO much easier than I thought it would be. I used it to make some lockdown cookies for my step kids and they LOVED them! I really don’t think it’s healthy to constantly consume wheat flour all the time. It’s good to change things up a bit! Thanks!
I’m so glad you tried making homemade oat flour and had success with it!! Isn’t it so easy?! 🙂
Can I use steel cut oats for this, and for the do-si-do recipe?
Hi, Lia! Yes, you can use steel cut oats to make oat flour, it just may take a bit longer to blend. For the Do-Si-Dos, you can use oat flour made from steel cut oats for the 1 Tablespoon of oat flour, but I do not recommend using steel cut oats in place of the 1/4 cup rolled oats.