A simple way to make gluten-free oat flour at home using whole rolled oats. Oat flour has a slightly nutty flavor perfect for baking. We have created an easy tutorial for you to make DIY oatmeal flour in just 5 minutes.
Please read the entire post for tips and tricks to ensure a perfect recipe every time. And don't forget to tag @peelwithzeal on Instagram so we can admire your creation!
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Oats do not contain gluten but are often cross contaminated. Oat flour made from gluten-free certified oats is gluten free.
It is not recommended to substitute oat flour for wheat flour in a 1:1 ratio because it lacks the gluten needed for self-rising recipes. See our section on how to substitute oat flour below.
Oat flours do not last as long as regular flours due to oils in the oats. Stored in an airtight container for up to 3 months.
Use old fashion oats, rolled or steel cut, to make oat flour. Do not use quick cooking oats to make homemade oat flour.
Tips for Substituting Oat Flour in Recipes
- Do not substitute one for one. Replace no more than ¼ of the total flour with oat flour.
- If using oat flour in a gluten-containing (i.e. all-purpose or wheat) recipe that uses yeast increase the yeast by 15%.
- When using oat flour in gluten-free baking add additional xanthan gum.
- When replacing oat flour for regular flour in recipes go by weight not volume.
- Oat flour substitutes better in recipes that have a binder and fat, like eggs and oil.
- As will all gluten-free baking the batter needs to rest before using to allow the flour to hydrate a bit.
Here are some of our favorite recipes using oat flour.
Homemade Oat Flour
- 2 cups old fashioned oats certified gluten-free, if needed
- Scale up or down the recipe as needed
- Store extra flour in a labeled air-tight container for up to 3 months