This flourless protein brownie mug cake is the ultimate treat for your diet. With no flour and no eggs, this 1 minute protein brownie is low calorie, keto and gluten-free.
A fudgy 25 g protein brownie in a mug with just 176 calories: spoons of heaven that will taste like dessert. You'll never guess it's also healthy and macro-friendly!
Flourless brownie ingredients
This flourless protein brownie recipe is incredibly simple: you only need five basic ingredients - no flour, no eggs and no banana! Honestly, I'm pretty sure this keto protein brownie mug cake will become your new favorite dessert.
Here is a list of all ingredients that you should have to make this low calorie and high protein brownie in a mug:
- Greek yogurt: this recipe uses nonfat Greek yogurt, but you can replace with full-fat Greek Yogurt. For a vegan mug cake, use dairy-free Greek yogurt or coconut yogurt.
- Protein powder: this flourless brownie mug cake recipe uses whey protein powder, but you can replace it with plant based protein powder or casein (with some adaptations, more on this later). In terms of flavor, I like vanilla but also chocolate or brownie will taste great.
- Granular sweetener: for a low calorie protein brownie in a mug, this recipe uses sugar-free and calorie-free granular sweetener (erythritol, to be precise). Feel free to replace with coconut sugar, brown sugar or any other granular sweetener of your choice.
- Cocoa powder: this flourless protein brownie mug cake is made with natural cocoa powder, free from added sugars.
- Water or milk: as it is only 1 tablespoon, you can make this recipe with either water or milk (also dairy-free if you wish).
Which protein powder for keto brownie mug cake?
This flourless protein brownie recipe uses whey protein powder. I find that whey is the best option for this dessert because it mixes very well without getting thick or forming lumps. If you want to make keto protein brownie mug cake with casein or vegan protein powder, instead, your recipe may require some more milk or water. All you have to do is adding more liquid to the brownie batter until it gets smooth. And if you mess up with too much water, adjust with more protein powder or cocoa powder.
In terms of flavor, I like preparing this flourless protein brownie mug cake with vanilla protein powder. But feel free to use your favorite flavor: chocolate, brownie, salted caramel, peanut butter or even unflavored. If you opt for unflavored protein powder, however, this recipe may require some more sweetener to fix the taste.
Dairy-free and vegan flourless brownie
Do you want to make this recipe but can't eat dairy or follow a vegan diet? If it is the case, then keep on reading because I have good news for you! Making a vegan protein brownie mug cake with no flour is as simple as replacing the Greek yogurt with a thick plant based yogurt of your choice and substituting whey with vegan protein powder. Furthermore, make sure that you are utilizing water or nondairy milk instead of cow milk.
How to make protein brownie mug cake
In a microwave safe mug, stir the Greek yogurt with protein powder, cocoa powder, granular sweetener and water (or milk). Mix well, until all ingredients are combined and the brownie batter has become smooth - adding more water or milk if it is necessary. This depends on the type of protein powder that you use, as casein and vegan protein tend to absorb more liquid.
Once your keto flourless brownie batter is ready, optionally top with chocolate chips and microwave on high for 30 seconds to 1 minute. Or bake in hot oven at 180°C (350°F) for around 10 minutes, if you prefer. But make sure that you do not overcook or over-bake the brownie otherwise it will get dry!
Oven baked protein brownie in a mug
If you don’t have a microwave or prefer baking, you can easily make this flourless protein mug cake in the oven. For this, preheat the oven to 180ºC (360ºF) and, when hot, bake for about 10 minutes.
Tips for the best flourless brownie mug cake
Here are a couple of tips and tricks that will bring your keto flourless brownie mug cake to the next level!
- Make sure that you prepare this recipe with Greek yogurt or a thick yogurt of your choice. Yogurts with a smooth texture, instead, are not recommended.
- Use a granular sweetener of your choice. Do not replace with a liquid sweetener otherwise the consistency of the brownie batter won't be the same.
- Stir into the batter a pinch of salt and a hint of coffee powder. They will enhance the flavors and make your brownie irresistibly delicious!
- Before microwaving or baking, top with some chocolate chips if you want. Chocolate makes everything better!
- Do not overcook (!!) this keto brownie mug cake or it will get dry. I recommend microwaving for about 30 seconds, and cooking for a bit longer only if it is required.
More protein brownie recipes
- Low calorie protein brownie skillet
- Flourless Greek yogurt brownies
- Healthy brownie mug cake
- 100 calorie chocolate cake
Nutrition Facts
4 servings per container
Calories176
- Amount Per Serving% Daily Value *
- Total Fat
5g
8%
- Amount Per Serving% Daily Value *
- Total Carbohydrate
5g
2%
- Protein 25g 50%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Laura
Easy, fast. Great combo. Thanks
Matteo
Hey dear Laura!
Thank you very much for your feedback, I´m incredibly happy to hear you enjoyed this recipe!
All the best,
Matteo 😉