While making Peanut Butter + Banana Ice Cream Sandwiches, I was unexpectedly in a pinch for some oat flour. What may have been an unwelcome surprise was actually a pleasant opportunity to practice resourcefulness.
In true making it up as I go style, I took up the impromptu challenge of making homemade oat flour with what I had on hand, and it was a success! Yes, making your own oat flour is that quick and easy!
All it takes to make homemade oat flour is a high powered blender and oats. I used the dry grains container of my Vitamix blender and old fashioned rolled oats.
The Vitamix dry grains container has blades that are pointed upwards, creating an ideal environment for grinding of dry ingredients. It is extremely versatile and I’ve used it for making powdered sugar and flours in a jiffy many times.
The hardest part of making homemade oat flour for me is turning on the Vitamix. I usually plug in the blender and dial up the speed, but forget to switch the blender on using the hidden power switch.
After measuring out the oats, I added them to the blender.
Then, I ran the Vitamix on high (7-9) for 3 to 5 minutes until the entire batch of oats turned into a powder consistency.
And that’s it! Within 5 minutes, I made homemade oat flour and was back to working on the rest of my recipe.
If a fine, consistent powder is needed, you can optionally sift the flour. For my Peanut Butter + Banana Ice Cream Sandwiches, I kept the rougher consistency to add more texture to the peanut butter cookie crusts.
Oat flour is a perfect gluten-free alternative to white or wheat flour in baking and cooking, including muffins, pancakes, cookies, and waffles.

Quick and easy homemade oat flour for gluten-free, healthy baking.
- 2 cups old fashioned oats
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Add the oats to a blender or food processor.
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Blend on high power for 3-5 minutes, until the entire batch of oats has turned into a powder.
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(Optional) Sift flour if consistent flour is desired.