The Best Ever Fudgy Oatmeal Brownies

If dessert is your favorite food group and you’re ready to follow a homemade brownie recipe instead of a basic boxed brownie mix, look no further than these fudgy oatmeal brownies!

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Are you looking for more ways to use oatmeal than in your morning overnight oats? Read on to learn about all of the fudgy oatmeal brownies and extra variations!

How Do You Make Oatmeal Brownies?

There are several ways to incorporate oatmeal into your brownie recipes (see brownie variations below), but the most common way is to replace all-purpose flour with oats in the batter. Doing this will make your brownie recipe gluten-free and add more nutrients than white flour. You can use store-bought oat flour or blend rolled oats or quick oats in a food processor to get a flour-like consistency. 

These better-for-you oatmeal brownies are easy to bake, gluten-free, and you can make them with only a few ingredients! I promise that it will be love at first bite when you bake these. 

To make this brownie recipe, you will need unsweetened cocoa powder, oat flour, chocolate chips, vanilla extract, salt, two eggs plus a yolk, and a sweetener. The sweeteners used in this brownie are coconut sugar and agave nectar. Instead of agave nectar, you could also use honey, maple syrup, or any other liquid sweetener to help keep the brownies fudgy. 

Follow these step-by-step instructions below for the yummiest crowd-pleasing easy-to-make brownies: 

healthy homemade gluten-free fudgy oatmeal brownies

Fudgy Oatmeal Brownies

These fudgy and naturally gluten-free brownies made with oat flour will have you craving more!
4.70 from 20 votes
Prep Time 10 mins
Cook Time 25 mins
Total Time 35 mins
Course Dessert
Cuisine American
Servings 16 brownies
Calories 180 kcal


  • 1 1/2 cup semi-sweet chocolate chips
  • 1/2 cup coconut sugar
  • 4 tbsp agave
  • 2 eggs
  • 1 egg yolk
  • 1 tsp vanilla
  • 1/2 cup oat flour
  • 1/4 cup cocoa powder
  • 1/2 tsp salt


  • Preheat the oven to 350°F.
  • Using the microwave, melt chocolate chips in a large microwave-safe bowl and melt, stirring every 30 seconds until smooth.
  • Add agave, eggs, egg yolk, coconut sugar, and vanilla extract to the bowl and whisk until smooth.
  • Add the oat flour, cocoa, and salt to the mixture. Whisk until batter-like consistency.
  • Spray or line a baking pan with parchment paper and pour the batter in.
  • Bake brownies for 25 minutes or until set.
  • Cool and serve!


Serving: 1brownieCalories: 180kcalCarbohydrates: 21gProtein: 3gFat: 8gSaturated Fat: 4gPolyunsaturated Fat: 1gMonounsaturated Fat: 2gTrans Fat: 1gCholesterol: 34mgSodium: 94mgPotassium: 139mgFiber: 2gSugar: 13gVitamin A: 54IUCalcium: 19mgIron: 2mg
Keyword dessert, gluten-free
Tried this recipe?Let us know how it was!

How Do You Make Chewy Brownies, Not Cakey?

One of the many challenges in baking is not creating the right consistency for your dessert. However, incorporating more fat into your brownie recipe will ensure it is chewier over cake-like. For example, you could add an extra egg yolk, more butter, or coconut oil for a vegan option! We recommend adding these over substitutes like applesauce due to their higher fat content.

If you are not looking to add extra calories through the additional fat, another way to ensure your brownie is ooey-gooey on the inside is to undercook them slightly. Be aware that this may not be safe if your recipe includes eggs. Stick a toothpick in the center of the brownie when it is almost done, and it should have a few crumbs on it! If you over-bake the brownies, they will be drier and less chewy. Avoid overmixing the brownies to keep the consistency denser and fudgier as well. Using a liquid sweetener (maple syrup, agave, or honey) will yield chewier brownies than a solid sweetener like granulated sugar or brown sugar.

Oatmeal Brownie Variations- What to Add to Brownies?

Oatmeal Brownie Bars– Another popular way to use oatmeal in brownies is by creating an oatmeal crust. This method would require you to make brownies as usual and use rolled oats, brown sugar, and butter as a crust and crumbly topping. Add the oat mix crust to the baking pan first, pour the brownie batter in, and top with excess oat mixture. Instead of baking cookies next time you have to cook for a crowd, these brownie bars will be your new go-to.

Oatmeal BlondiesThese oatmeal blondies use oats as the main ingredient instead of chocolate and cocoa powder. The dry ingredients include brown sugar, white sugar, salt, baking soda, baking powder, all-purpose flour, and rolled oats with optional add-ins like chocolate chips and chopped nuts. You’ll also need to mix in two eggs, vanilla extract, and room temperature butter to complete this brownie recipe.

Plant-based Oat Brownies: Sometimes, copycat recipes of our favorite desserts taste off. There are many great recipes for healthy brownies, but I promise this black bean recipe will not disappoint. I have made this egg-free, fudge-like, vegan recipe countless times with success and raving reviews.

To make them, you’ll need to combine the following ingredients in a food processor: a drained can of black beans, 2 Tbsp of unsweetened cocoa powder, 1/2 cups of quick oats, 1/3 cup maple syrup, 2 tbsp granulated sugar, 1/4 cup coconut oil, 2 teaspoons vanilla extract, 1/2 teaspoon baking powder, and 1/2 cup of allergen-friendly chocolate chips. Transfer the batter into a greased baking pan. Bake it in a preheated oven (350 degrees Fahrenheit) for 15 -17 minutes. This recipe makes about 9 servings!

What Goes Well With Brownies?

So you found a great recipe for perfect brownies but are still looking for ways to jazz it up? Here are some of our favorite additions that take your chocolatey oat brownies to the next level.

Espresso Powder- With a bit of espresso powder, you can turn your basic brownies into delicious chocolate Espresso Brownies. This recipe is super easy to make! We recommend using dark chocolate chips and dutch-processed cocoa powder in these brownies to complement the coffee taste! If you don’t eat them all in one sitting (which is unlikely), they can be stored in an airtight container for a few days.

More Chocolate- To classify your brownie as a triple chocolate chunk, add an unsweetened bar of chocolate and extra semi-sweet chocolate chunks. Be sure to melt the chocolate bar in a microwave-safe bowl or a double boiler. If chocolate is your favorite flavor, you’ll love these fudgy brownies. Chocolate addicts beware; these brownies are irresistible.

Healthy Brownies With Peanut Butter– As mentioned above, fat adds a more gooey and chewy consistency to your brownies. So, using peanut butter in a recipe enhances both the fudginess and flavor! Who doesn’t love a chocolate and peanut butter combination? I prefer using all-natural peanut butter because of the creamy consistency and simple ingredient list. If you or someone you’re baking for has a peanut allergy, feel free to use cashew or almond butter instead.

What’s so Special About Oatmeal?

Traditionally used as a breakfast food, oatmeal has many health benefits and uses. Oatmeal lovers will tell you about all of the different oatmeal recipes ranging from breakfast to dessert! Some popular oat recipes include oatmeal chocolate chip cookies or baked oatmeal. Oats are often a base for healthier desserts and pastries, like blueberry oat muffins.

Oatmeal is an excellent substitute for wheat flour. Also, when using oat flour, you are using the entire oat, making it a whole grain. Not only is oatmeal naturally gluten-free, but it also provides more fiber and protein than white flour.

The easiest way to use oats in the mornings is by making no-bake overnight oats! To make this vegan-friendly breakfast, pour steel-cut or old-fashioned oats in a mason jar with almond milk, coconut milk, brown sugar, or any of your favorite toppings. Cover the jar and leave it in the refrigerator overnight for an easy dairy-free breakfast-to-go! Overnight oat add-ins can also include chocolate chips, chia seeds, nut butter, or cocoa powder to create brownie oatmeal.

Get Baking!

Whether you are making blondies, vegan brownies, peanut butter brownies, or classic ones, you can’t go wrong with using oat flour! Be sure to try out these better-for-you brownies next time you’re craving something sweet. And share your favorite recipe with loved ones on FamilyApp!

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