How to Make Oat Flour - Love and Lemons (2024)

Once you learn how to make oat flour at home, you'll never buy it again! I love to blend up a big batch to have on hand for cookies, muffins, and more.

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How to Make Oat Flour - Love and Lemons (1)

How to Make Oat Flour - Love and Lemons (2)

Oat flour is an indispensable ingredient in my kitchen. It’s the first thing I reach for if I’m making a gluten-free recipe, and I also like to add it to regular baked goods to give them an extra-soft, delicate texture. No matter how I plan to use it, it’s the one pantry staple that I always, alwaysmake at home. Blending my own takes less than a minute, and it’s so much cheaper than buying it at the store. If I run out, I can blend up more in no time.

Read on to find my foolproof method for how to make oat flour, as well as my favorite recipes that use it!

How to Make Oat Flour - Love and Lemons (3)

How to Make Oat Flour

Making homemade oat flour couldn’t be easier! All you need is whole rolled oats (notsteel-cut or quick oats) and a food processor or high-speed blender.

Place the oats in the blender or food processor and blend until they form a fine flour, stopping to stir occasionally.

That’s it! Use it in any recipe that calls for oat flour. Store leftovers in an airtight container in a cool, dry place for up to 3 months.

How to Make Oat Flour - Love and Lemons (4)

Oat Flour FAQ

  • Can I substitute it for all-purpose flour? No! A 1:1 substitution of oat flour for all-purpose flour will not work. Instead, look for baking recipes that specifically call for it. Find some of my favorites below!
  • Is it gluten-free? Yes, IF you make it with certified gluten-free oats. Oats are a naturally gluten-free food, but many are processed in facilities that also handle wheat products. If you’re gluten-free, be sure to seek out certified gluten-free oats, which are processed in wheat-free facilities and tested to make sure that they don’t contain gluten. I like Bob’s Red Mill Gluten-Free Oats.
  • How much flour will my oats yield? 1 cup whole rolled oats yields about 3/4 cup flour.

How to Make Oat Flour - Love and Lemons (5)

Oat Flour Recipes

Once you have oat flour on hand, you’ll find so many ways to use it! Toss it with nuts, brown sugar, and old-fashioned oats to make a gluten-free topping for an apple crumble or any fruit crisp, or roll it into energy balls like the PB&J or Cookie Dough Date Balls on page 260 of Love and Lemons Every Day. Alternatively, use it on its own or in combination with other gluten-free flours, like almond flour, to make gluten-free cookies, muffins, or scones. I use it in these gluten-free recipes:

I also like to combine it with regular all-purpose or whole wheat flour to give pancakes, cookies, and other baked goods a really delicate, soft texture. Find it in these recipes:

How to Make Oat Flour - Love and Lemons (6)

More Favorite Oat Recipes

Leftover oats? Use them in one of these recipes:

  • How to Make Oat Milk
  • Stovetop Oatmeal
  • Overnight Oats
  • Baked Oatmeal
  • Perfect Oatmeal Cookies
  • No-Bake Cookies

Oat Flour

rate this recipe:

5 from 5 votes

Prep Time: 2 minutes mins

Total Time: 2 minutes mins

Serves 4

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Learn how to make oat flour at home! Then, use it in muffins, cookies, scones, crumbles, and more.

Ingredients

Instructions

  • Place the oats in a food processor. Blend until the oats become a fine flour, stopping to stir occasionally.

  • Use in any recipe that calls for oat flour. Store in an airtight container in a cool, dry place.

Notes

*For gluten-free oat flour, be sure to use Certified Gluten Free oats. I like Bob's Red Mill's.

2 cups of oats will yield approximately 1 1/2 cups oat flour.

Note: you cannot use oat flour as a 1:1 substitute for all-purpose flour or a gluten-free flour blend.

How to Make Oat Flour - Love and Lemons (2024)

FAQs

How do you make homemade oat flour? ›

Making homemade oat flour couldn't be easier! All you need is whole rolled oats (not steel-cut or quick oats) and a food processor or high-speed blender. Place the oats in the blender or food processor and blend until they form a fine flour, stopping to stir occasionally. That's it!

Is oat flour just ground oats? ›

Oatmeal and oat flour are identical in nutritional makeup and flavor because they're made from the same initial ingredient: whole oat groats. The main difference between meal and flour, though, is how finely the original ingredient has been ground. Meal is coarser and has more texture, while flour is pure powder.

What happens if you use oat flour instead of all-purpose flour? ›

How does this swap impact final taste, color and/or texture? Baked goods made with Quaker Oat Flour will have a darker color than those made with all-purpose flour. Oat flour will also bring a subtle sweet cereal and sometimes a nutty flavor.

What does oat flour do to your body? ›

Health Benefits of Oats

The recommended diet for weight loss is rich in dietary fiber. Oat flour is rich in fiber which is an incredible carbohydrate because it increases metabolism, triggers your CCK hormone that signals to your brain that you're full, absorbs fat, and promotes regular bowel movements.

How long does homemade oat flour last? ›

Your homemade oat flour will last about 3 months stored in a cool area in your pantry or up to 6 months when stored in the freezer. Make sure you're placing the oat flour in a sealed plastic bag or an airtight glass container, such as a large mason jar or Tupperware.

How much flour does 1 cup of oats make? ›

1 cup of rolled oats equals about 3/4 cup oat flour, so you'll need a bit more rolled oats if you need a full cup of oat flour in your recipe.

Is it cheaper to make your own oat flour? ›

Yes, so much cheaper! You can buy rolled oats at the store for minimal cost and great a ton of oat flour quickly. This is so much less expensive than buying oat flour at the store.

Do you need more baking powder with oat flour? ›

If does make a great shortbread cookie, pie crust, or any baked item that does not need to raise and you want a very tender product. When making recipes that require baking powder, add 2 1/2 teaspoons baking powder per cup of oat flour.

How much oat flour equals 1 cup all-purpose flour? ›

To replace 1 cup of all-purpose flour, you'll need to multiply that by 1.4 to get a similar weight of oat flour. For example, if a cookie recipe calls for 1 1/4 cups of all-purpose flour, you'll need to multiply that by 1.4 to get the correct amount of oat flour to use.

Is oat flour anti-inflammatory? ›

In addition to their fiber content, oats are also rich in antioxidants like avenanthramides, which have been shown to have anti-inflammatory properties. This can help to reduce inflammation in the body, which is a major contributor to heart disease and other chronic conditions.

Does oat flour spike blood sugar? ›

Oat flour is not only a good source of fiber and protein but also contains beta glucan, a specific type of fiber that has been shown to decrease blood sugar levels in people with diabetes ( 9 , 10 ). Oat flour has a mild, nutty flavor and can help soften baked goods while giving them a chewy, unique texture.

Is oat flour made from old fashioned oats? ›

Oat flour is a gluten-free form of whole grain flour which is made from old fashioned oats or whole oats that have been ground into a powder-like consistency.

How to grind oats into flour without a blender? ›

Grinding: Using a mortar and pestle, grind the oats into a powder. Mashing: A last-ditch effort, put the oats in a resealable plastic bag, squeeze the air out, and start crushing as if washing clothing by hand. Note that this will likely take a long time.

Can I use steel-cut oats to make oat flour? ›

To make oat flour from steel-cut oats, you must use a high-speed blender. In fact, steel-cut oats have a strong outer layer, and they won't turn into oat flour in a food processor. Steel-cut also oats contain way more fiber than rolled oats.

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