How to Make Oat Flour (Gluten-Free)

How to Make Oat Flour – Learn how easy it is to make your own oat flour + get LOTS of ideas for how to use it. This whole grain flour is great for everything from breakfast to dessert! 

Today’s kitchen tip is one I use every few weeks: how to make oat flour!

Oat flour’s a great staple in a gluten-free diet, it but works for all kinds of dietary needs. We use oat flour in recipes from breakfast to dessert–it’s such a versatile whole grain flour and has a great hearty texture that can blend into pancakes or make gorgeous desserts.

Oat flour is a great, nutritious option you can use to make all KINDS of yummy recipes, and it only takes 1 ingredient and 5 minutes (or less) to pull together. Here’s what you need to get started…

WHAT YOU NEED TO MAKE YOUR OWN OAT FLOUR:

1. ROLLED OR QUICK-COOKING OATS. You can make oat flour easily with rolled oats (sometimes labeled old-fashioned oats), or quick-cooking oats. I don’t recommend steel-cut oats for making oat flour, as they can strain your blender motor.

2. A BLENDER OR FOOD PROCESSOR. To make oat flour, you’ll put those oats in a blender or food processor and blend until the oats are a fine powder. I’ve used both with good success, but blender is my favorite because it tends to go a bit faster.

THAT’S IT! Now, you’re ready to make your own oat flour…

HOW TO MAKE OAT FLOUR:

It’s SO easy to make oat flour! All you need to do is:

1. Measure out quick or rolled oats
2. Pour oats into a blender or food processor
3. Cover and blend until you’ve got a fine powder, about 15-20 seconds. (After blending, I recommend scraping down the sides or shake the blender jar a bit so you don’t miss any oats. If you notice you missed some, blend again till it’s all smooth.)
4. Pour oat flour into an airtight container or use right away! 

RECIPES THAT USE OAT FLOUR:

Now that you’ve got some homemade oat flour, it’s time to use it! There are LOADS of yummy recipes out there that use oat flour, but some of our favorites are things like…

• Healthy Peanut Butter Banana Muffins
• Blender Pumpkin Oatmeal Pancakes
• Oatmeal Lemon Berry Muffins
• No-Bake Chocolate Peanut Butter Bars
• Blender Apple Oatmeal Pancakes

FAQ + TIPS & TRICKS FOR HOMEMADE OAT FLOUR:

HOW MUCH OAT FLOUR DO YOU GET PER CUP OF OATS? It will depend a bit on how compacted your oat flour is when you measure and whether you used rolled or quick-cooking oats, but a general guideline is 1 cup of rolled oats makes just over 1 cup of oat flour. 

IS A FOOD PROCESSOR OR BLENDER BETTER FOR MAKING OAT FLOUR? I’ve used both with great success, but I typically use my blender because it’s faster and easier for me. Food processors will take a bit longer and may not produce results quite as fine as a blender, but will totally work. It’s up to you!

IS OAT FLOUR GLUTEN-FREE? It is *IF* you use certified gluten-free oats. Oats don’t contain wheat gluten, but growing & farming processes often cause cross-contamination, which can cause reactions in Celiac or gluten-intolerant folks. You can avoid this by buying certified gluten-free oats. We like Bob’s Red Mill, Thrive Market, Trader Joe’s, and One Degree Sprouted oats.

HOW TO STORE OAT FLOUR + HOW LONG OAT FLOUR STAYS FRESH. At a minimum, you’ll want to keep your oat flour in an airtight container to keep it fresh. It’ll keep about 1 month at room temperature, about 2 months in the refrigerator, and about 3 months in the freezer.

WHAT KIND OF OATS DO YOU USE TO MAKE OAT FLOUR? I recommend rolled oats or quick-cooking oats for making oat flour. Steel-cut oats can strain your blender or food processor motor and burn it out if you’re not careful.

OATMEAL FAN? YOU MIGHT ALSO LIKE:

• 7 Ways with Overnight Oats
• How to Make Instant Pot Steel-Cut Oats (+7 Flavors to Try!)
• Pumpkin Baked Oatmeal
• Banana Oatmeal Pancakes
• Flourless Monster Cookie Bars

HELPFUL FOR MAKING YOUR OWN OAT FLOUR:

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