Easy low carb keto brownie on a plate with a silver fork to the left.

Fudgy Dark Chocolate Keto Brownies with Cocoa Powder

Who doesn’t love a fudgy, gooey, chocolate dessert, especially when it’s low carb? This decadent keto brownies recipe is made with dark cocoa powder to give them a pure, dark chocolate flavor. They are so easy you can whip them up in 20 minutes or less, start to finish, and you won’t even need a mixer! Browning the butter is optional – don’t worry about it if you’re short on time – but it adds a lot of flavor.

For this recipe you’ll need: almond flour, cocoa powder, chocolate whey protein (mine has 3 carbs and 1g fiber per serving), swerve sweetener, baking powder, salt, butter, egg, sugar free chocolate cookie dough syrup, and vanilla extract.

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Fudgy keto brownies on a blue and white plate

I love chocolate. There have been times I’ve manipulated my day’s eating plan to allow for more chocolate and less vegetables. I know – true confessions – but I bet you’ve done it, too.

Well, brownies aren’t something you should eat tons of but these have just 3 net carbs and they are so rich and satisfying that I consider them to be a fat bomb. They’ll be pretty jiggly and gooey when you take them out of the oven and they are almost like a lava cake when they are warm. If you have the personal restraint to let them cool, though, they solidify and become chewy with crispy edges.

And, to me anyway, that’s the perfect brownie, my friends.

So, I have been SO disappointed with low carb brownies over the years. They’d say they were chewy but they always came out cakey for me. I don’t like cakey brownies – to me that’s chocolate cake! Some haven’t been dark enough, some haven’t been sweet enough… and so on. I decided to try to adapt my favorite fudgy brownie recipe to make them keto-friendly.

I’ve thrown out a lot of chocolate mess. I didn’t throw these out, y’all.

Closeup of the dark chocolate keto brownie on a blue and white plate

How to Brown Butter for Best Keto Brownies Ever

Here’s the thing. When you brown butter it takes on a deep, nutty, almost toffee-like flavor. Well, unless you scorch it because then it’s just ick. Browning butter adds extra flavor without adding carbs. It’s super easy!

  • To make brown butter you’ll begin by putting the butter in a heavy saute pan with a light bottom. The light bottom help you to keep track of the color change – you don’t want it to get too brown.
  • Place the pan on medium heat and let the butter melt.
  • You’ll need to move the butter around in the pan once in awhile, either by swirling the pan or moving it around with a wooded spatula or spoon.
  • Make sure the butter is browning evenly.
  • As the butter melts it will produce a foam – just gently pull the foam back to keep track of the color.
  • When the butter is a light golden brown remove it from the heat – you’re done!
Dark chocolate keto brownie on a vintage blue willow plate with a blue goblet in the background

I use Swerve granulated sweetener in these brownies and it works great!

Fudgy Keto Brownies Recipe

Easy low carb keto brownie on a plate with a silver fork to the left.

These easy, fudgy, keto brownies are fantastic. I won’t say they are exactly like “real” brownies but they are absolutely delicious! If you’ve got a few carbs left in your allotment warm the brownie up in the microwave and put a scoop of low carb ice cream on it. If you like this recipe please give it 5 stars.

Dark chocolate keto brownie on a blue willow plate with a fork - recipe image
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Fudgy Keto Brownies

Fudgy, gooey, and full of chocolate flavor! These keto brownies are a little like lava cake when they’re just out of the oven and chewy when they’ve chilled overnight. 
Course Dessert
Cuisine American – low -carb
Keyword brownies
Prep Time 5 minutes
Cook Time 20 minutes
Total Time 25 minutes
Servings 4
Calories 194kcal
Author Katherine Peters


  • 3 tablespoons almond flour
  • 4 tablespoons cocoa powder
  • 2 tablespoons chocolate whey protein
  • 3 tablespoons Swerve Sweetener
  • 1 teaspoon baking powder
  • Pinch salt
  • 1/4 cup melted butter
  • 1 egg
  • 1 tablespoon sugar free chocolate chip cookie dough syrup or favorite
  • 1/4 teaspoon vanilla extract
  • 1 tablespoon pecans


  • Melt the butter and let it turn a golden brown. Don’t let it burn!
  • Let the butter cool so that it is just comfortably warm to the touch.
  • Preheat the oven to 325F.
  • Grease a small, square baking dish – about 6×6-inches
  • Blend the almond flour, cocoa, whey protein, sweetener, baking powder and salt together. Set aside.
  • Beat the melted butter, egg, sugar free syrup, and vanilla together until well mixed.
  • Add the almond flour mixture to the egg mixture, stirring until smooth.
  • Fold in the pecans.
  • Spoon into prepared baking dish and bake for 15 to 20 minutes.


Calories: 194kcal | Carbohydrates: 5g | Protein: 5g | Fat: 18g | Saturated Fat: 8g | Cholesterol: 72mg | Sodium: 132mg | Potassium: 250mg | Fiber: 2g | Vitamin A: 520IU | Vitamin C: 1.2mg | Calcium: 92mg | Iron: 1.6mg

If you liked these low carb, keto brownies you may also like…

Click on the image to see the recipe. From left to right: Gingerbread Mug Cake, Peanut Butter Mug Cake, Mug Brownie with Peanut Butter Swirl

Low Carb Gingerbread Mug Cake?Low Carb Peanut Butter Mug Cake?Low Carb Mug Brownie

Still looking? Here are a couple of recipes from some of my favorite blogs…

Low Carb Brownies

Skillet Brownies

7 thoughts on “Fudgy Dark Chocolate Keto Brownies with Cocoa Powder”

  1. Chaya Feinstein

    My brownies came out very cakey. The batter was very thick, not like a brownie. I even added an extra egg because it was so cakey. What did I do wrong? The only other substitution I made was sugar free maple syrup since I didn?t have chocolate chip cookie syrup.

  2. What size pan do you recommend for baking the brownies? I didn’t see that in your post. Sorry if I overlooked it. Thanks.

  3. Is this absolutely essential to the recipe?
    “sugar free chocolate chip cookie dough syrup or favorite”


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