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Vegan Gluten Free Oat Flour Brownies

Prep
20 min
Cook
20 min
Yield
16 brownies
Level
medium
Cuisine
American
Gluten Free Oat Flour Brownies with Coconut Oil

Rich, fudgy brownies made with oat flour and coconut oil create a naturally gluten-free treat that rivals traditional versions. The combination of cocoa powder and vegan chocolate chips delivers deep chocolate flavor, while maple syrup and coconut sugar provide natural sweetness. These dairy-free brownies use a flax egg for binding, making them perfect for vegan diets too. The oat flour base gives them a tender, slightly dense texture that holds together beautifully. Ideal for anyone avoiding gluten without sacrificing taste or texture.

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Method

8 steps
  1. 1

    Preheat oven to 350°F and line an 8-inch square baking pan with parchment paper

  2. 2

    Sift together oat flour, cocoa powder, baking powder, and salt in a medium bowl

  3. 3

    Whisk together maple syrup, melted coconut oil, coconut sugar, flax egg, and vanilla extract in a large bowl until well mixed

  4. 4

    Add dry mixture to wet mixture and whisk as long as possible, then fold with rubber spatula until no flour patches remain

  5. 5

    Fold in chocolate chips

  6. 6

    Transfer batter to prepared pan and smooth into even layer with rubber spatula

  7. 7

    Bake for 17-23 minutes

  8. 8

    Cool in pan for 30 minutes until firm, then transfer to cooling rack and cool completely for 1-2 hours before slicing

Tips

Tip 1

Ensure oat flour is very finely ground, not coarse, for the best texture and binding

Tip 2

Let the flax egg sit for the full 15 minutes to properly gel before using

Tip 3

Cool brownies completely in the pan before cutting to prevent crumbling

Good to Know

Storage

store covered at room temperature

Make Ahead

can be made 1 day ahead

Serve With

serve at room temperature

Common Mistakes

Watch

use finely ground oat flour to avoid crumbly texture

Watch

cool completely before cutting to prevent falling apart

Watch

do not overbake or brownies will be dry

Substitutions

Gluten-Free Swaps

oat flour→
gluten free all purpose flour1:1gluten-free

use recommended brand for best results

Full guide →

General Alternatives

flax egg→
regular egg1:1vegetarianadds eggs

makes recipe non-vegan

coconut oil→
vegetable oil1:1neutral

may slightly change flavor

Full guide →
coconut sugar→
brown sugar1:1neutral

similar moisture content

Full guide →
Find more substitutions →

FAQ

Can I use regular all purpose flour instead of oat flour?

No, this recipe is specifically designed for gluten-free oat flour. Regular flour contains gluten and will change the texture significantly.

What if I do not have flax eggs?

You can substitute with 1 regular egg, but this will make the brownies no longer vegan. Chia eggs work as another vegan alternative.

How long do these brownies keep?

Store covered at room temperature for up to 1 week, or freeze wrapped tightly for up to 3 months.