Best Oatmeal Brownies

Best Oatmeal Brownies

gluten-free brownies

Recipe by
Reviewed by Arturs Arnicans
Prep Time: 5m
Cook Time: 18m
Total Time: 23m
Temp.: 350 ºF
Servings: 16
Difficulty: Easy
5.0 (12 Reviews)
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Ingredients

Adjust servings:

Nutritional Information

232
Calories
14g
Fat
25g
Carbohydrates
5g
Protein
37mg
Cholesterol
126mg
Sodium
Best Oatmeal Brownies

Recipe Description

The Best Oatmeal Brownies are rich, moist, and perfectly fudgy. What makes this brownie recipe the best? Two things. The first is the method. It all comes together in a blender or a food processor in less than 5 minutes. The second is using oat flour instead of regular flour. Oat flour has a pleasant nutty flavor and is naturally gluten-free. Making oat flour is super easy. Just pulse the oats in your blender into a fine powder, and you are good to go. And if you’re new to gluten-free baking, this easy recipe is a great place to start.

Once you have the oat flour, you add all the dry ingredients and process to combine. Then add in the wet ingredients and pulse a few times to combine. Don’t overmix! Stop as soon as all the ingredients are incorporated without any lumps. Finally, stir in most of the chocolate chips, reserving some for topping. Transfer the batter to a greased or lined baking pan and top with the reserved chocolate chips. Bake until a toothpick inserted in the center comes out with some wet crumbs. Cool for 30 minutes before slicing, and serve.

To make the Best Oatmeal Brownies, you will need the following ingredients:

Ingredients for Best Oatmeal Brownies

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Steps to make

  1. 1

    Preheat oven and prepare baking pan

    Step 1 - Best Oatmeal Brownies

    Preheat the oven to 350 ºF. Grease an 8x8-inch baking pan with non-stick cooking spray. Alternatively, line with parchment paper. Set aside.

  2. 2

    Pulse oats

    1 min
    Step 2 - Best Oatmeal Brownies

    Place ¾ cups rolled oats in a high-powered blender or a food processor. Pulse the oats into a fine powder, about 30 seconds to 1 minute.

  3. 3

    Add cocoa powder, sugar, baking soda and salt

    1 min
    Step 3 - Best Oatmeal Brownies

    To the oat flour, add ¾ cup unsweetened cocoa powder, ¾ cup granulated sugar, ½ teaspoon baking soda, and ¼ teaspoon salt and process to combine.

  4. 4

    Add wet ingredients

    1 min
    Step 4 - Best Oatmeal Brownies

    Add the melted and cooled ½ cup butter, ½ cup creamy peanut butter, 2 large eggs, 2 tablespoons water, and 1 teaspoon vanilla extract. Process to combine well.

  5. 5

    Add chocolate chips

    1 min
    Step 5 - Best Oatmeal Brownies

    Stir in ¾ cup chocolate chips. The batter should be very thick.

  6. 6

    Transfer batter to baking pan and top with chocolate chips

    1 min
    Step 6 - Best Oatmeal Brownies

    Pour the batter into the prepared baking pan, smooth the top and sprinkle the remaining chocolate chips over.

  7. 7

    Bake

    18 min
    Step 7 - Best Oatmeal Brownies

    Bake for 16 to 18 minutes or until a toothpick inserted in the center comes out with wet crumbs, but not totally raw batter. Allow to cool for 30 minutes before slicing.

  8. 8

    Serve

    Step 8 - Best Oatmeal Brownies

    Slice and serve!

If you’re looking for the Best Oatmeal Brownies, you’ve found them. Rich, moist, dense, and perfectly fudgy, these straightforward brownies are everything you want them to be. Please let us know if you try this recipe by tagging us on Instagram @cookmerecipes. We love seeing what you’ve made!

About the author

Lilly Mathuse

Lilly is an enthusiastic and cheerful young mom. She knows as well as any parent that children can be really picky when it comes to food. And she’s had plenty of experience trying to cook meals that are both tasty and nutritious, and able to satisfy the tastes of a fussy kid right away! To save you some precious time, Lilly's going to share with you all the tricks she learned the hard way, so you don’t have to! She has a wealth of recipes for quick and easy meals for kids and families on a budget.

Recipe Reviews

Have you made this recipe? Share your experience and help other cooks!

★★★★★
★★★★★
5.0 out of 5 (12 reviews)
Yusuf Thompson
March 9, 2025
Verified

These oatmeal brownies are just superb! I made them last weekend for a family movie night, and they were a hit with my kids. The combo of oat flour and chocolate is so yummy. Plus, they were easily mixed in the blender, which made clean up a breeze!

Chris
March 8, 2025
Verified

Thankful for brownies

Chloe
February 15, 2025
Verified

OMG, these brownies are amaze! 😍 So fudgy and delish! I whipped 'em up for my gal pals during our movie night, and they were a total hit! Plus, makin the oat flour was way easier than I thought. Definitely my go-to dessert now! 🎉

Zoe
December 27, 2024
Verified

Super moist brownies. Made these with my kids for a fun afternoon. Everyone loved them, especially with ice cream on top.

Ivy
October 18, 2024
Verified

Delicious!

Eddie
October 1, 2024
Verified

Delicious! Made them for family reunion, everyone raved about their fudginess. Definitely my new favorite brownie recipe!

Nicolás Fernández
June 13, 2024
Verified

Hice estos brownies de avena el otro día y fueron una delicia. Me encanta lo faciles que son de preparar, sólo en 5 minutos ya estaban listos para hornear. Usé mi batidora y se mezclaron perfectos. No soy tan bueno en la cocina, pero gracias a esta receta se me dio bien. Definivelmente los volveré a hacer.

Amanda Johnson
April 6, 2024
Verified

Oh man, these brownies are total game changers! My kids loved 'em! They never even noticed they were gluten-free. So easy to whip up too.

Yasmine Carter
January 4, 2024
Verified

Fudgy perfection! These brownies are so easy to make. I whipped them up for my friends, and they devoured every bite! I love that it uses oat flour! Totally my new fave. Can’t wait to bake again!

Tina
December 2, 2023
Verified

Yum!

Karen Smith
September 20, 2023
Verified

Rich, tasty brownies. Great afternoon treat made my day brighter. I'll make it again soon

Athina
May 12, 2023
Verified

I made these today and my husband and I loved them! Thanks for sharing the recipe!

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