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Easiest Homemade Oat Flour

I like to make a batch to store in a mason jar, though you can do smaller batches whenever you need it.
Course Baking
Cuisine American
Prep Time 5 minutes
Total Time 5 minutes
Servings 8 (Makes 2 cups)
Calories 77kcal


  • 2 cups old fashioned oats


  • Add the oats to a blender.
  • Starting on low, turn the blender on to start to grind the oats. Move the blender up to high to grind the oats into a flour-like consistency. It may take 15-30 seconds depending on your blender.
  • Use or store in a mason jar or other airtight container.


  • Store for 1 month in an airtight container at room temperature or up to 1 year in a zip top freezer bag in the freezer.
  • You can use a food processor, though it will not grind into as fine of a texture.
  • Use as instant oatmeal for babies or toddlers by mixing with a 2:1 ratio of hot water to oats. Add cinnamon or fruit as desired.
  • Use in recipes like Healthy Breakfast Bars, Vanilla Oat Smash Cake, Blueberry Banana Muffins, and Soft-Baked Granola Bars.


Calories: 77kcal | Carbohydrates: 14g | Protein: 3g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 1mg | Potassium: 73mg | Fiber: 2g | Sugar: 1g | Calcium: 11mg | Iron: 1mg