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Gluten-Free Mug Brownie

Moist, rich, fudgy Gluten-Free Mug Brownie made with only 4 ingredients! This basic brownie recipe takes less than 5 minutes to make, and is an incredible vegan single-serve dessert. No eggs, dairy, baking powder, or baking soda required!

Gluten-Free Mug Brownie with coconut sugar - a single-serve brownie recipe made in the microwave

One evening, I had a massive craving for a rich, moist gooey brownie and was

1.) too anxious to wait an entire 40 to 50 minutes to bake a whole batch, and

2.) not interested in the mental and physical aftermath of eating half a 9” x 9” pan of brownies, because I could tell this was one of those moments I had zero ability to moderate.

SO I googled “mug brownie” and found Simply Recipe’s Brownie in a Mug.

And what happened next was beautiful.

I tweaked the recipe to make it gluten-free, refined sugar-free and guaranteed to be fudgy AF (i.e. I added more oil), and what resulted was the most glorious, sexy little brownie I’ve ever laid mouth on.

Gluten-Free Mug Brownie with coconut sugar - a single-serve brownie recipe made in the microwave

And I’ve made it multiple times since.

You only need 4 basic ingredients to make this mug brownie!

Ingredients for a Gluten-Free Mug Brownie:

Gluten-free flour blend: I recommend Bob’s Red Mill’s 1-to-1 Gluten-Free Baking Flour or King Arthur’s Gluten-Free Measure for Measure Flour Blend. These will yield a nice and fluffy brownie with that chewy interior and crispy top and sides.

Cocoa powder: Use an unsweetened cocoa powder or raw cacao powder (I use raw cacao powder).

Coconut sugar: Lower on the glycemic index than cane sugar, coconut sugar has a nice caramel flavor and can be used as a 1:1 replacement for cane sugar. I love that it is less refined

Avocado oil: The moist, fudgy quality of this brownie comes from the fat content. You can use canola oil, coconut oil, or melted butter. You can also reduce the fat to 2 tablespoons (and add an extra tablespoon of water)

You will also add sea salt and water, but we won’t count those as actual ingredients 😉

Optional add-ins are ground cinnamon and pure vanilla extract. They certainly aren’t mandatory, but they add a nice little je ne sais quois to the adventure.

Gluten-Free Mug Brownie with coconut sugar - a single-serve brownie recipe made in the microwave

When all is said and done, this single-serve brownie recipe is dairy-free, refined sugar-free, gluten-free, and requires no eggs, baking soda or baking powder.

Here’s how to do it. Ready? It’s the least complicated thing you’ll do all day.

How to Make a Gluten-Free Mug Brownie:

Add the gluten-free flour, coconut sugar, cocoa powder and a pinch of sea salt to a microwave-safe mug and stir well to combine (note: you can also add a pinch of cinnamon and/or instant coffee granules here if desired).

How to make a single-serve gluten-free brownie in a mug
How to make a gluten-free, refined sugar free vegan single serve brownie in a mug

Add the avocado oil and water and stir well until combined. Note: you can add ⅛ teaspoon of pure vanilla extract here if you’d like.

How to make brownie in a mug - gluten-free refined sugar-free, dairy-free, vegan
How to make brownie in a mug - gluten-free refined sugar-free, dairy-free, vegan

Microwave on high for 40 to 50 seconds, until the center has barely set up but still appears moist.

How to make brownie in a mug - gluten-free refined sugar-free, dairy-free, vegan

Add a scoop of ice cream and slip into the most amazing chocolatey bliss you’ve experienced. Savor every bite, meow!

Dairy-Free Vegan Gluten-Free Mug Brownie - a single-serve dessert recipe requiring only 4 ingredients

I will warn you, this mug brownie is completely addictive. To the extent that when I was photographing it, I initially told myself I would save it for my partner, which turned into oh, I’ll just eat one bite, which turned into me eating the whole thing, save 1 bite for my partner.

Mug Brownie - no eggs, dairy, baking soda, baking powder, or dairy.

So what I’m trying to say is, proceed with caution if caution is in your wheelhouse.

Gluten-Free Vegan Mug Brownie made refined sugar-free and dairy-free in 5 minutes using 4 ingredients

How to Bake a Mug Brownie in the Oven:

If you don’t own or use a microwave, no big deal! Simply bake at 350 degrees F for 12 to 18 minutes (depending on your preferred level of doneness). I recommend placing the mug on a baking sheet to keep it stable 🙂

But really, have your way with this thing. Life is too short to not.

More Single-Serve Dessert Recipes:

My cookbook, Paleo Power Bowls, is now available! CLICK HERE to check it out. Thank you for your support!

If you make this recipe, please feel free to share a photo and tag me at @The.Roasted.Root on Instagram!

Top down close up photo of a mug brownie with a small scoop of vanilla ice cream on top.

Gluten-Free Mug Brownie

4-ingredient vegan gluten-free mug brownie requiring less than 5 minutes to make!
Prep Time: 3 minutes
Cook Time: 1 minute
Total Time: 4 minutes
1 mug brownie

Ingredients

Optional Additions:

Instructions

  • Add the gluten-free flour, coconut sugar, cocoa powder and a pinch of sea salt to a microwave-safe mug and stir well to combine (note: you can also add a pinch of cinnamon and/or instant coffee granules here if desired).
    flour, cocoa powder, sea salt and cinnamon in a mug.
  • Add the avocado oil and water and stir well until combined. Note: you can add ⅛ teaspoon of pure vanilla extract here if you’d like.
    Hand stirring the wet ingredients into the brownie mix.
  • Microwave on high for 40 to 50 seconds, until the center has barely set up but still appears moist.
  • Add a scoop of ice cream and slip into the most amazing chocolatey bliss you’ve experienced. Savor every bite, meow!
    Horizontal image of a mug of brownie and ice cream sitting on a wooden table.

Video

Nutrition

Serving: 1mug brownieCalories: 622kcalCarbohydrates: 72gProtein: 3gFat: 41gFiber: 6gSugar: 60g
Course: Single-Serve Desserts
Cuisine: American
Keyword: brownie in a mug, brownies, chocolate, coconut sugar, dairy free, dessert, gluten free, gluten-free mug brownie, refined sugar free, single serve brownie, vegan dessert recipe
Servings: 1 mug brownie
Calories: 622kcal
Author: Julia

This post contains affiliate links, which means I make a small commission off items you purchase at no additional cost to you.

Moist, rich, fudgy Gluten-Free Mug Brownie made with only 4 ingredients! This basic brownie recipe takes less than 5 minutes to make, and is an incredible vegan single-serve dessert. No eggs, dairy, baking powder, or baking soda required!
Recipe Rating




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Hannah

Friday 2nd of February 2024

I was very skeptical when I saw the texture of the final mixture, but trusted the process and it’s actually soooo good. I added some chocolate chunks and it really added so much to it, loved the melty goodness of the warm chocolate.

Julia

Tuesday 6th of February 2024

I'm happy you had faith in the process and that the brownie turned out well for you! Thanks so much for the sweet note, Hannah!

Teresa

Thursday 7th of December 2023

This recipe works with an allulose-monkfruit blend for the sugar; I just tried it! Divine!

Julia

Friday 8th of December 2023

Sounds marvelous! Thank you for sharing, Teresa! xo

Ciara

Sunday 29th of October 2023

So good! I halfed the sugar and was still sweet with the vanilla! Will be saving this

Julia

Wednesday 1st of November 2023

Love that, Ciara! This is super helpful to others who want to make the recipe with less sugar - thanks so much for sharing your feedback! xo

Jenny

Friday 22nd of October 2021

I made this last night when I had a huge craving for something chocolatey and sweet. It did not disappoint!! I even made another one after lunch today to share with my toddler. I’m sure we’ll being making this many MANY more times haha!

Julia

Sunday 24th of October 2021

I'm so happy you and your toddler enjoy it! Thank you for the sweet note! xoxo

Jenny

Friday 22nd of October 2021

Oops! We’ll *be* making this many more times, not being

Hannah

Friday 25th of June 2021

Hi,

It looks amazing! Can I substitute buckwheat flour instead for this recipe?

Julia

Friday 25th of June 2021

Hi Hannah!

I've never tested the recipe using buckwheat flour, but I imagine it will work! I'm not sure if it has the same absorbency as GF AP flour, so you may need to use slightly more flour to get it to the right consistency. Either way, it should be delicious :) Enjoy! xoxox

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