how to make oat flour in a blender or food processor

Extremely easy oat flour can be made by using a food processor or in a high-speed blender. I came across two different results with each method.

how to make oat flour easy recipe

Can I use oat flour instead of all-purpose flour?

Oats absorb liquid and oils well— making it the ideal flour for baking buttery cookies or muffins. However, if you are wanting to use yeast, know that oatmeal does not rise.

It’s important to use rolled oats or (old-fashioned oats). Instant oats are too processed and can leave your cookies or muffins goopy.

how to make super easy oat flour recipe

What is a good substitute for oat flour?

ºWhole wheat flour–which adds a deep wheat flavor to any pie crust, pizza, or biscuit.

ºQuinoa flour–is perfect for muffins, pancakes, and cookies just to name a few.

ºBuckwheat flour–contains a deep nutty flavor that goes best in muffins or even decadent brownies.

Food processor or high-speed blender, which one is best to create oat flour? My findings.

I found that using a high-speed blender (like a Vitamix) creates a more fine flour. The food processor could definitely make oat flour without a dought, but if you are looking for a super fine flour, use a high-speed blender. If you want a flour that is a little more on the homemade side and a bit’ rustic, stick with the food processor. Both are great. It simply depends on your #foodgoals.

If you are looking for a gluten-free alternative to flour, make sure to use certified gluten-free oats, thus making it my favorite gluten-free flour to use.

how to make oat flour in a blender or food processor

How to make oat flour

  • Prep Time: 5 minutes
  • Total Time: 5 minutes


makes 1 cups of oat flour



  • 1 cup rolled oats ((certified gluten-free optional))


  1. In a food processor or high-speed blender, dump in the rolled oats.
  2. Whether you are using a blender or food processor, blend on high for about a minute or so or until the desired constantly is met.
  3. Pause between to scrape down the sides and catch any oat that failed to hit the blade.
  4. Store in an air-tight container with a lid in your fridge or cupboard for up to 3 months.