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Oat flour in a labeled glass canister.
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How to Make Oat Flour

Learn how to make oat flour from scratch. Homemade oat flour takes less than 5 minutes to make, is incredibly easy, and can be used in a variety of recipes.
Course Ingredients
Cuisine American
Diet Gluten Free
Prep Time 5 minutes
Total Time 5 minutes
Servings 3 cups
Calories 410kcal
Author Sara

Equipment

  • 1 high-speed blender or food processor

Ingredients

  • 4 cups rolled oats/old-fashioned oats (use certified gluten free if needed)

Instructions

  • Place oats in a high-speed blender or food processor.
  • Blend on med-high for about 30 seconds, or until all oats are ground down into a fine flour. If needed, you can stop the blender and mix the oats.
  • Store in an air-tight container, at room temp, for up to 6 months.

Notes

  • Check for small pieces of oats to ensure all oats get ground down - if needed, you can stop the blender and stir the oats a few times. 
  • 1 cup of oats will yield roughly ¾ cup of oat flour.
  • Because I frequently use oat flour in my kitchen, I always blend up multiple cups of oats and store a jar of oat flour in my pantry so it's ready when I need it. 
  • The nutrition information shown is for roughly 1 cup of oat flour (recipe makes 3 cups). 

Nutrition

Calories: 410kcal | Carbohydrates: 73g | Protein: 14g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 2g | Sodium: 6mg | Potassium: 391mg | Fiber: 11g | Sugar: 1g | Calcium: 56mg | Iron: 5mg