If you’ve ever wanted brownies and blondies at the same time, these keto brookie blondies are exactly what you need. Two batters swirled together in one pan, and every square looks as good as it tastes.
The brownie part is rich and fudgy. The blondie part is buttery and golden with sugar-free chocolate chips mixed in. Together they make something really special.

Best of all, this whole recipe is low carb and keto friendly. You get that indulgent dessert feeling without worrying about sugar or carbs derailing your progress.
The batter comes together quickly and you only need one baking pan. It’s a simple recipe that looks way more impressive than the effort it takes to make.
If you’re looking for a keto dessert that’s fun to make and even better to eat, this one is for you. Let me show you how it’s done.
Why You’ll Love This Recipe
Two Desserts in One – You get the rich fudginess of a brownie and the buttery sweetness of a blondie in every single bite.
Gorgeous Swirl Pattern – The dark and golden batters create a stunning contrast that looks like it came from a bakery.

Perfectly Keto Friendly – Made with almond flour and monk fruit sweetener so you can enjoy a real treat without breaking ketosis.
Fudgy and Chewy Texture – These are dense and moist on the inside with slightly set edges that give the perfect chew.
Recipe Ingredients
For the Brownie Batter
- 1 cup Almond Flour
- 3 tbsp Unsweetened Cocoa Powder
- 1/4 cup Melted Unsalted Butter
- 1/4 cup Golden Monk Fruit Sweetener
- 1 large Egg
- 1 tsp Vanilla Extract
- 1/4 tsp Baking Powder
- 1/8 tsp Salt
For the Blondie Batter
- 1 cup Almond Flour
- 1/4 cup Melted Unsalted Butter
- 1/4 cup Golden Monk Fruit Sweetener
- 1 large Egg
- 1 tsp Vanilla Extract
- 1/4 tsp Baking Powder
- 1/8 tsp Salt
- 1/4 cup Sugar-Free Chocolate Chips
How To Make
Step 1
Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper.
Step 2
Make the brownie batter first. In a medium bowl, whisk the melted butter and monk fruit sweetener together. Add the egg and vanilla extract and whisk until smooth. Add the almond flour, cocoa powder, baking powder, and salt. Stir until a thick, dark chocolate batter forms. Set aside.
Step 3
Make the blondie batter. In another medium bowl, whisk the melted butter and monk fruit sweetener together. Add the egg and vanilla extract and whisk until combined. Add the almond flour, baking powder, and salt. Stir until a thick, golden batter forms. Fold in the sugar-free chocolate chips.
Step 4
Drop alternating spoonfuls of the brownie and blondie batters into the prepared pan, creating a checkerboard pattern across the bottom.
Step 5
Use a toothpick to gently swirl the two batters together, dragging through them just 3 or 4 times. Do not over-swirl as you want a dramatic contrast between the dark and light batters.
Step 6
Bake for 24 to 28 minutes, until both batters are set and a toothpick inserted in the center comes out with just a few moist crumbs. The brownie sections will look fudgy and the blondie sections golden.
Step 7
Let cool completely in the pan before slicing into 16 squares. Each piece will have a stunning swirl of both brownie and blondie, making these incredibly photogenic and delicious.

Tips
Let the Melted Butter Cool Down a Bit
After you melt the butter, give it about 2-3 minutes to cool slightly before whisking it with the egg. If the butter is too hot, it will start cooking the egg and you’ll get little scrambled bits in your batter.
It should still be liquid and pourable, just not screaming hot. Warm to the touch is perfect.
Use Golden Monk Fruit, Not White
The recipe calls for golden monk fruit sweetener for a reason. It has a slight caramel-like flavor that works perfectly here, especially in the blondie batter where there’s no cocoa to carry the taste.

White monk fruit sweetener will work in a pinch, but the blondie layer can taste a little flat without that subtle warmth the golden version brings. If you only have white, adding a tiny pinch of cinnamon can help fill that gap.
Don’t Over-Swirl the Batters
When you drag the toothpick through the batters, literally do it 3-4 times and stop. It’s less than you think. The goal is to get big, dramatic streaks of dark and light, not a blended-together brown.
Use a single long drag from one side of the pan to the other, then do it again in a different direction. If you keep going, the two batters mix together and you lose that whole brookie look.
More Recipes
- Keto Brownies
- Keto Cookie Dough Stuffed Brownies
- Keto Peanut Butter Swirl Brownies
- Keto Raspberry White Chocolate Blondies
- Keto Browned Butter Cookie Bars
Frequently Asked Questions
Why are my brookie blondies crumbly and falling apart?
The most common reason is overbaking. Since almond flour does not have gluten to hold everything together the way regular flour does, even a few extra minutes in the oven can dry things out. Pull them out as soon as a toothpick comes out with just a few moist crumbs clinging to it.
Also, make sure you let them cool completely in the pan before you try to slice them. They firm up a lot as they cool, so if you cut them too early they will crumble on you.
Keto Brookie Blondies
Ingredients
Method
- Preheat your oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper.
- Make the brownie batter first. In a medium bowl, whisk the melted butter and monk fruit sweetener together. Add the egg and vanilla extract and whisk until smooth. Add the almond flour, cocoa powder, baking powder, and salt. Stir until a thick, dark chocolate batter forms. Set aside.
- Make the blondie batter. In another medium bowl, whisk the melted butter and monk fruit sweetener together. Add the egg and vanilla extract and whisk until combined. Add the almond flour, baking powder, and salt. Stir until a thick, golden batter forms. Fold in the sugar-free chocolate chips.
- Drop alternating spoonfuls of the brownie and blondie batters into the prepared pan, creating a checkerboard pattern across the bottom.
- Use a toothpick to gently swirl the two batters together, dragging through them just 3 or 4 times. Do not over-swirl as you want a dramatic contrast between the dark and light batters.
- Bake for 24 to 28 minutes, until both batters are set and a toothpick inserted in the center comes out with just a few moist crumbs. The brownie sections will look fudgy and the blondie sections golden.
- Let cool completely in the pan before slicing into 16 squares. Each piece will have a stunning swirl of both brownie and blondie, making these incredibly photogenic and delicious.