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oat flour in a glass canister

How to Make Oat Flour

Homemade oat flour couldn't be any easier and is a healthy and gluten free alternative to wheat flour. You only need rolled oats and 5 minutes for this oat flour recipe.
Course Ingredients
Cuisine American
Diet Gluten Free
Prep Time 5 minutes
Total Time 5 minutes
Servings 3 ¼ cups
Calories 409kcal
Author Sara


  • 4 cups certified gluten-free rolled oats (if not gluten free, standard oats work too)


  • Place oats in a high speed blender of food processor.
  • Blend on med-high for about 30 seconds, or until all oats are ground down into a fine flour.
  • Store in an air-tight container for up to 3 months.


  • Check for small pieces of oats and ensure all oats get ground down - you may need to shake blender a few times if needed. 
  • The nutrition information shown is for roughly 1 cup of oat flour. 


Calories: 409kcal | Carbohydrates: 73g | Protein: 14g | Fat: 7g | Saturated Fat: 1g | Sodium: 6mg | Potassium: 391mg | Fiber: 11g | Sugar: 1g | Calcium: 56mg | Iron: 5mg