Ultra-Indulgent Flourless Mug Brownie Recipe
- Rebecca Silvernale
- Feb 16, 2024
- 5 min read
Updated: Feb 22, 2024
Dive into the world of instant gratification with this ultra-indulgent, flourless brownie crafted to perfection in just a minute within the cozy confines of your mug! This recipe is a testament to the art of microwave baking, offering a paleo and grain-free solution to those sudden chocolate urges. It's so decadently delicious, one might wonder if indulging in this treat twice a day negates the simplicity of a microwaved dessert. But let's keep that between us, shall we?

Why This Recipe Shines
Initially, I toyed with the idea of naming this delightful concoction a "paleo chocolate mug cake" or a "flourless chocolate mug cake." Yet, after indulging in its rich, fudgy texture, which leans more towards a brownie than a cake, the decision was clear. This recipe isn't just good; it's exceptional, crafted to instantly satisfy those chocolate cravings with a single serving of pure bliss.
What You Need for Flourless Mug Brownie Recipe
Indulge in the simplicity and richness of a flourless mug brownie with these key ingredients. This recipe is not only straightforward but also caters to those looking for a paleo-friendly treat. Here's what you'll need to whip up this delectable dessert:
Egg: The binder that gives your brownie structure and richness.
Cocoa powder: This is the heart of the chocolate flavor. Use high-quality cocoa or cacao powder for the best taste.
Maple syrup: A natural sweetener that adds moisture and a subtle, earthy sweetness.
Coconut oil (melted): Adds moisture and a slight coconut flavor, ensuring your brownie is deliciously fudgy. Plus, a little extra for greasing the mug to prevent sticking.
Vanilla extract: A dash of vanilla enhances the chocolate flavor, adding depth to your brownie.
Sea salt: Balances the sweetness and intensifies the overall flavor of the brownie.
Gather these ingredients, and you're just a few minutes away from enjoying a warm, fudgy, flourless mug brownie that promises to satisfy your chocolate cravings instantly!
How to Make Paleo Brownie in a Mug
Creating your own flourless mug brownie is not only quick but incredibly satisfying. Here's a detailed guide to ensure your brownie-making process is as smooth and enjoyable as the treat itself:
Prep Your Ingredients: Start by gathering all your ingredients. This will make the process seamless. Ensure your coconut oil is melted and cooled slightly - you don't want it too hot when mixing with the egg to avoid cooking the egg prematurely.
Whisking the Batter: In a small bowl, combine the egg, cocoa powder, maple syrup, melted coconut oil, vanilla extract, and a pinch of sea salt. Whisk these ingredients together vigorously until the mixture is thoroughly combined and smooth. Getting rid of any lumps at this stage is crucial for a smooth, consistent brownie texture.
Grease Your Mug: Choose your favorite microwave-safe mug for this delightful treat. Using a little extra coconut oil, lightly grease the inside of the mug. This step ensures that your brownie doesn't stick to the mug and can be enjoyed to the last bite without any hassle.
Pour the Batter into the Mug: Transfer your brownie batter into the greased mug. Tap the mug gently on the counter to level the batter and remove any air bubbles. This helps in cooking the brownie evenly.
Microwave Magic: Place your mug in the microwave and cook on high for 60-90 seconds. The exact time may vary depending on the wattage of your microwave and the size and thickness of your mug. Start with 60 seconds, then check the doneness. The brownie should be set around the edges but still slightly jiggly in the center - this is the secret to a fudgy texture. If it's not quite there, microwave in additional 15-second bursts, checking after each.
Cooling Down: Patience is a virtue, especially when it comes to desserts. Allow your mug brownie to cool for about 5 minutes after microwaving. This resting period not only makes it a safer temperature for eating but also allows the brownie to firm up slightly, enhancing its fudgy texture.
Customize Your Treat: Now for the fun part - topping your brownie! While this step is optional, adding toppings can elevate your mug brownie experience. Consider a scoop of ice cream or whipped cream, a drizzle of chocolate syrup, a sprinkle of powdered sugar, fresh berries, or even a dollop of nut butter. Each addition offers a new layer of flavor and texture.
Dive In: Grab a spoon, dive into your perfectly crafted mug brownie, and enjoy the warm, gooey, chocolatey goodness. Whether as a quick treat for yourself or a late-night indulgence, this flourless mug brownie is sure to hit the spot every time.
With these detailed steps, you're all set to enjoy a delicious, fudgy flourless mug brownie that's effortlessly prepared and deeply satisfying.
Flourless Mug Brownie Recipe

Yield: | Prep Time: |
1 serving | 2 minutes |
Cooking Time: | Total Time: |
1 minute (5 minutes cooling) | 8 minutes |
Ingredients
1 egg
3 tbsp cocoa powder or cacao powder
3 tbsp maple syrup
1 tbsp coconut oil melted, plus more for greasing
1/2 tsp vanilla extract
pinch of sea salt
Instructions to Make Flourless Brownie in a Mug
Add all ingredients to a bowl and whisk together until smooth and just combined.
Grease the inside of a standard 12oz or 16oz mug.
Pour the batter into the mug.
Microwave for 60-90 seconds. Check after 60 seconds. The center of the brownie should be slightly jiggly.
Cool for 5 minutes then dig in with a spoon! Feel free to add optional toppings like ice cream, whipped cream, chocolate chips, shaved chocolate flakes, chopped nuts, berries, and more.
Paleo Mug Brownie Tips and Variations
Though this recipe perfectly serves one, its richness easily satisfies two, especially with the addition of:
A scoop of vanilla ice cream
A dollop of whipped cream or whipped coconut cream
A sprinkle of chocolate chips or shaved chocolate flakes
A dusting of powdered monk fruit sweetener
Fresh berries on top
A drizzle of chocolate syrup, caramel sauce, or nut butter
A scattering of chopped nuts
Discover More Low-Sugar Desserts
Looking for more ways to satisfy your sweet tooth without the sugar overload? Check out these tempting options:
Protein Peanut Butter Pudding: A creamy, protein-rich treat that blends the irresistible flavors of peanut butter and chocolate without the high sugar content.
Berries and Cheesecake Salad: A fresh and light option, combining juicy berries with the creamy texture of cheesecake in a delightful, low-sugar salad.
Frozen Yogurt Bark: An easy-to-make, customizable treat featuring creamy yogurt and your favorite toppings, frozen into a delicious bark. Perfect for a refreshing, low-sugar snack.
Each of these recipes offers a delicious way to enjoy dessert without compromising your health goals. Click through to find your next favorite low-sugar treat!
Conclusion
Regardless of whether you view it as a flourless mug brownie or cake, this recipe is a gateway to instant chocolate heaven. There’s truly nothing more satisfying than delving into a mug filled with warm, fudgy, chocolatey delight.
This is one of the most amazing Paleo desserts to fill the sweet cravings! Super simple to make and I enjoy it as an afternoon pick-me-up. :-)