Oat Flour Brownies
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Published Jun 20, 2022, Updated Jun 20, 2024
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These oat flour brownies are rich, fudgy, dense and naturally gluten-free. They’re made with simple ingredients, come together quickly and make for the perfect healthy dessert.
As an oat lover I’m always looking for ways to incorporate oats into my dessert recipes. Iโve made many brownie recipes over the years, but I think I hit the jackpot with these oat flour brownies.

Why You’ll Love These Brownies
- These brownies are made with oat flour, so theyโre naturally gluten-free.
- No one will know that they’re made with good-for-you ingredients! They are still so rich and fudgy.
Ingredients Needed
- oat flour โย use store-bought oat flour or you can make your own using my oat flour recipe. If you’re making your own oat flour, about 1 1/4 cups rolled oats blended will yield 1 cup oat flour.
- cocoa powder โ can’t have brownies without cocoa powder for that chocolatey flavor! Make sure youโre using unsweetened cocoa powder. Cacao powder works as well. I really likeย Navitas organic cacao powder.
- sea salt โ brings all the flavors together.
- baking powder โ to help the brownies rise.
- eggs โ helps bind the ingredients together and provide structure for the brownies.
- avocado oil โ avocado oil helps to moisten the brownies and provides a neutral taste. Itโs also a heart-healthy and wonderful source of antioxidants and is lower in saturated fat compared to other common baking oils like coconut oil. 1 Tablespoon of avocado oil has only 2 grams of saturated fat.
- maple syrup โ one of my favorite natural sweeteners. Just be sure to use pure maple syrup, not the artificial kind labeled โpancake syrupโ that’s made from corn syrup.
- unsweetened applesauce โ you can use store-bought or make your own using my applesauce recipe.
- vanilla extract โ a flavor enhancer.
- chocolate chips โ I recommend Enjoy Life dark chocolate chips which are allergen-friendly or Lilyโs chocolate chips because they are lower in sugar and calories.
How to Make
Making these oat flour brownies is incredibly easy.
In a medium mixing bowl, start by combining oat flour, cocoa powder, sea salt and baking powder. In a large mixing bowl whisk together eggs, avocado oil, maple syrup, applesauce and vanilla extract. Pour dry ingredients into wet ingredients and mix until just combined. Gently fold in the chocolate chips.
Grease an 8ร8 inch baking pan or line with parchment paper. Pour the brownie mixture into the pan. Bake at 350ยบF for 20-25 minutes. Youโll know the brownies are done when a toothpick inserted into the center comes out clean.
Let the brownies cool completely before cutting and serving. Trust meโฆ they taste better cool! I actually burnt my mouth trying to get an early taste.
Baking With Oat Flour
This recipe is naturally gluten-free because weโre using oat flour as the base. If youโre new to using oat flour, itโs essentially just rolled oats ground up into a fine flour. You can find it at most grocery stores in the natural section (I usually buy Bobโs Red Mill oat flour) or simply make your own by processing rolled oats in your food processor or high-speed blender.
Like rolled oats, oat flour is high in fiber, vitamins and minerals. Itโs a nutrient-dense source of carbohydrates โ meaning yes, itโs still a carb like regular white flour, but itโs packed with nutrients and not empty carbs.
Oats are naturally gluten-free, although itโs important to note that oats are commonly cross-contaminated with gluten so be sure to grab oats/oat flour that is labeled as certified gluten-free if you have an intolerance.
Substitutions & Notes
- Oat flour โ Iโve only tested this recipe with oat flour and donโt recommend subbing for any other flour.
- Eggs โ I have not tried swapping the eggs for flax eggs, but I bet it would work. The brownies just might not rise as much. Let me know if you try using flaxseed eggs in the comments below.
- Maple syrup โ I havenโt tried substituting the maple syrup for another sweetener like honey, but I bet it would work. If you decide to experiment, let me know how they turn out.
- Avocado oil โ any neutral oil will work in place of the avocado oil. You can also use melted butter if that’s what you have on hand.
- Chocolate chips โ instead of chocolate chips you could try a different mix-in like chopped pecans or walnuts.
How to Serve
I love eating these brownies plain, but if you want to get fancy here are some topping ideas:
- Nut butter โ you canโt go wrong with a drizzle of nut butter to top!
- Coconut whip โ these brownies would be delicious with a dollop of coconut whipped cream on top!ย
- Ice cream โ brownies + ice cream = a match made in heaven. These brownies would be delicious warmed in the microwave and served with my banana ice cream, chocolate banana ice cream or avocado ice cream.ย
- Caramel sauce โ Iโm drooling just thinking about how delicious my date caramel sauce would be drizzled over one of these brownies.ย
- Yogurt โ want to eat a brownie for breakfast? Crumble it on top of some Greek yogurt (or any yogurt of choice) with a sprinkle of granola (this hemp granola is delicious) and fresh berries. Like a breakfast brownie sundaeโฆ so yummy!
- Fruit โ serve these brownies with some fresh berries. They add a pop of color and such good flavor!
How to Store Leftovers
Store brownies in an airtight container at room temperature for 3-4 days or in the refrigerator for up to 1 week. For longer storage, I recommend freezing. Store in a freezer-safe, airtight container in the freezer for up to 3 months. I like to use my Stasher bags or these glass containers for easy storage.
More Brownie Recipes to Try
- Sweet Potato Brownies
- Black Bean Brownies
- Zucchini Brownies
- Oat Flour Brownies
- Pumpkin Brownies
- Avocado Brownies
Popular Dessert Recipes
- Chocolate Chip Cookie Skillet
- Healthy No Bake Cookies
- Homemade Samoas Cookies
- Healthy Chocolate Chip Cookies
- Healthy Peanut Butter Balls
- Chocolate Avocado Truffles
Be sure to check out all of the dessert recipes here on EBF!
If you enjoyed this recipe, please consider leaving a โญ star rating and let me know how it went in the ๐ comments below.
Oat Flour Brownies
Ingredients
- 1 cup oat flour
- ยฝ cup unsweetened cocoa powder
- ยฝ teaspoon sea salt
- 1 teaspoon baking powder
- 3 large eggs
- ยฝ cup avocado oil
- ยฝ cup maple syrup
- ยฝ cup unsweetened applesauce
- 1 teaspoon vanilla extract
- ยพ cup chocolate chips, plus more for topping
Instructions
- Preheat oven to 350ยฐF. Grease an 8ร8-inch baking pan or line with parchment.
- In a medium mixing bowl combine oat flour, cocoa powder, sea salt and baking powder.
- In a large mixing bowl whisk together eggs, avocado oil, maple syrup, applesauce and vanilla extract.
- Pour dry ingredients into wet ingredients and mix until just combined.
- Fold in chocolate chips.
- Transfer mixture to the prepared pan. Bake for 20-25 minutes, or until brownies are set in the center and a toothpick comes out clean.
- Let brownies cool completely (trust me, they test better cool, plus you wonโt burn your mouth). Cut into squares and enjoy!
Notes
- If making your own oat flour, you’ll need to blend about 1 1/4 cups rolled oats to yield 1 cup oat flour.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Any idea how they might turn out with all applesauce instead of oil? I actually donโt own oil because of dietary issues.
Hi Cathy – Applesauce is normally a great substitute for oil so I bet it would work well in these brownies. Let me know if you try it and how they turn out.
I have been looking for a healthy brownie recipe for so long. I have tried so many different ones with black beans, sweet potatoes and all kinds of nut butter. While they were ok, none left me satisfied until now!
This is so good. Easy to make and so close to a transitional brownie recipe when it comes to taste.
Next time Iโm thinking of adding some cherries after roasting them for a bit.
YAY! I am so glad you found this recipe and gave it a try, Alexandra. Thanks so much for sharing your review + star rating, it means so much to me!
Fantastic recipe! Thank you so much for sharing your recipe! These brownies are terrific! I had to make two substitutions: I didn’t have applesauce so I used plain, unsweetened yogurt instead. Worked well! I’m allergic to vanilla, so I used a teaspoon of bourbon whiskey, which I keep on hand for recipes. It’s a great substitute for vanilla.
This sounds absolutely amazing, Sheryl. Thank you for sharing your subs and for your review + star rating, it means so much to me!
Looks delicious, Are the brownies suitable for vegans?
Hi Manajemen – This recipe has eggs in it. I have not tried swapping the eggs for flax eggs, but I bet it would work. The brownies just might not rise as much. Let me know if you try using flaxseed eggs and how it turns out for you.
Iโm allergic to apples, do I have to add the applesauce?
Hey Jess – You could try mashed bananas instead of applesauce in this recipe! Let me know how it turns out for you if you end up trying it.
Canned pumpkin puree works well for me in place of applesauce.
Oh awesome! Good to know that pumpkin puree worked well as a substitute for the applesauce. Thanks for coming back to share!
Used honey and olive oil. Turned out delicious! Will definately keep making this recipe! Thanks ๐
Hey Jenny – So happy to hear that these brownies turned out for you with the honey and olive oil. Thanks for sharing your substitutions and for coming back to leave a review. I appreciate it!
My husband and I made these brownies last night. We have been looking for alternatives to sugary sweets and desserts. First time trying this recipe and happy to say that they are very good! I was impressed at how easy they were to make and how yummy and moist they are. I recommend this recipe and will def make it again!
YAY! I am so happy that you both enjoyed this recipe and that it worked out for you. Thank you for coming back and leaving your review + star rating, I so appreciate it!
Thank you Brittany! Another winner! I made these today and used your applesauce recipe as well since I could not find unsweetened applesauce at the supermarket. I skipped the cinnamon though.
I had some applesauce left over so I chucked it back in the blender with some lemon juice, a tablespoon of Maple Syrup, water and lots of ice. Wizzed up a lovely homemade apple/lemonade and treated my wife to a delicious healthy brownie with a cold drink. Needless to say, she was impressed!
Thank you for the great recipe!
Woo! I am so happy that this recipe worked out for you and that you were able to create your own applesauce at home to help everything come together. What an amazing treat that you served your wife, very impressive! Thank you so much for coming back and leaving your review + star rating, I so appreciate you being here!
love these !! dark chocolate decadent happiness packed with simple ingredients. i really appreciate your recipes with just oat flour because it’s cheap and more nutritious than many of the complicated GF flour blends. definitely will make these again !
Yay! So glad you liked them, Emily. Thank you for taking the time to leave me a comment and review!
Hey! This looks deliciousโฆ Is there a way to make it egg free?
Hey Shira – I have not tried swapping the eggs for a substitute, but if I were I would test flax eggs. The brownies just might not rise as much. Let me know if you test it and how the brownies turn out!