Browned butter makes everything better, and these keto browned butter cookie bars are proof. That nutty, toasty flavor takes a simple cookie bar and turns it into something really special.
The base is made with almond flour and coconut flour, so they’re completely low carb and keto friendly. No regular flour or sugar needed here.

They come out golden on top with a soft, chewy center that firms up perfectly as they cool. Add some sugar-free chocolate chips and a sprinkle of flaky sea salt, and you’ve got a treat that’s hard to believe is keto.
The whole recipe comes together in one bowl (plus a saucepan for the butter), and they bake in about 25 minutes. Really simple, really good.
If you’ve been looking for a low carb dessert that actually feels like a real dessert, give these a try.
Why You’ll Love This Recipe
Browned Butter Makes All the Difference – That nutty toasty browned butter gives these bars a rich depth of flavor most keto cookies just don’t have.
Perfect for Meal Prep – These bars stay fresh for days in the fridge so you can slice one whenever a sweet craving hits without breaking keto.

No Weird Keto Aftertaste – Golden erythritol paired with browned butter and vanilla creates such a warm caramel-like flavor that you won’t detect any sweetener taste.
Chewy and Soft Like Real Cookie Bars – The combo of almond flour and coconut flour gives these bars that thick chewy texture you actually crave from a bakery-style treat.
Recipe Ingredients
- 1/2 cup Butter
- 2 cups Almond Flour
- 1/3 cup Coconut Flour
- 3/4 cup Golden Erythritol
- 2 large Eggs
- 2 tsp Vanilla Extract
- 1 tsp Baking Powder
- 1/2 tsp Salt
- 1/2 cup Sugar-Free Chocolate Chips
- Flaky Sea Salt for topping
How To Make
Step 1
Place the butter in a small saucepan over medium heat. Let it melt completely, then continue cooking, swirling the pan occasionally, for about 4 to 5 minutes. The butter will foam and then turn golden amber with a nutty aroma.
Once you see golden brown bits on the bottom and it smells toasty, immediately pour the browned butter into a heatproof bowl. Let it cool for 10 minutes.
Step 2
Preheat your oven to 350F and line an 8×8-inch baking pan with parchment paper.
Step 3
Add the golden erythritol and vanilla extract to the browned butter and whisk until smooth. Beat in the eggs one at a time until well combined.
Step 4
In a separate bowl, whisk together the almond flour, coconut flour, baking powder, and salt. Add the dry ingredients to the wet mixture and stir until a thick batter forms. Fold in the sugar-free chocolate chips.
Step 5
Spread the batter evenly into the prepared pan. Sprinkle a pinch of flaky sea salt over the top.
Step 6
Bake for 22 to 25 minutes until the top is golden and the edges are set but the center still looks slightly soft. Let the bars cool completely in the pan before slicing into 12 bars. The center will firm up beautifully as they cool.

Tips
Don’t Rush the Browned Butter
The browned butter is what gives these bars their rich, nutty flavor, so you want to get it right. Keep the heat at medium and swirl the pan often. The butter will foam up and make it hard to see the color underneath, so use a light-colored pan if you have one.
Once the foam settles a bit, you’ll start to see golden brown bits forming on the bottom. That’s when it smells toasty and amazing. Pull it off the heat right at that point and pour it into a bowl immediately.
If you leave it in the hot pan even for an extra 30 seconds, it can go from perfectly browned to burnt. Burnt butter tastes bitter and there’s no fixing it – you’d have to start over.
Let the Browned Butter Cool Enough
After you pour the browned butter into a bowl, give it a full 10 minutes to cool down before adding the eggs. If the butter is still too hot, it will cook the eggs on contact and you’ll end up with scrambled egg bits in your batter.

The butter should be warm but not hot to the touch. You can speed this up by putting the bowl in the fridge for about 5 minutes, just don’t let it solidify completely.
Mix the Dry Ingredients Separately
Whisking the almond flour, coconut flour, baking powder, and salt together in a separate bowl before adding them to the wet mix makes a big difference. Coconut flour tends to clump, and if those clumps end up in the batter, you’ll get dry pockets in your bars.
Breaking up the clumps ahead of time and evenly distributing the baking powder and salt means every bite will taste consistent. It takes 30 seconds and it’s worth it.
More Recipes
- Low Carb Chocolate Chip Cookies
- Low Carb Chocolate Chip Skillet Cookie
- Low Carb Maple Pecan Blondies
- Keto Shortbread Cookies
- Keto Sugar Cookies with Vanilla Frosting
Frequently Asked Questions
Can I use regular erythritol instead of golden erythritol?
Yes, you can use regular (white) erythritol if that’s what you have on hand. The bars will still turn out great, but you’ll miss out on that subtle caramel-like depth that golden erythritol brings.
Golden erythritol works a lot like brown sugar in traditional baking, so it pairs really well with the browned butter flavor. If you want that rich, toffee-like taste, golden erythritol is worth picking up.
Keto Browned Butter Cookie Bars
Ingredients
Equipment
Method
- Place the butter in a small saucepan over medium heat. Let it melt completely, then continue cooking, swirling the pan occasionally, for about 4 to 5 minutes. The butter will foam and then turn golden amber with a nutty aroma. Once you see golden brown bits on the bottom and it smells toasty, immediately pour the browned butter into a heatproof bowl. Let it cool for 10 minutes.
- Preheat your oven to 350F and line an 8x8-inch baking pan with parchment paper.
- Add the golden erythritol and vanilla extract to the browned butter and whisk until smooth. Beat in the eggs one at a time until well combined.
- In a separate bowl, whisk together the almond flour, coconut flour, baking powder, and salt. Add the dry ingredients to the wet mixture and stir until a thick batter forms. Fold in the sugar-free chocolate chips.
- Spread the batter evenly into the prepared pan. Sprinkle a pinch of flaky sea salt over the top.
- Bake for 22 to 25 minutes until the top is golden and the edges are set but the center still looks slightly soft. Let the bars cool completely in the pan before slicing into 12 bars. The center will firm up beautifully as they cool.