These easy keto blondies are heavenly! They are super moist and fudgy - and require only five minutes of prep.
This keto blondies recipe deserves a place in the hall of fame for sugar free desserts. It is that good!
I'm a huge fan of easy baking, and these blondies tick all the boxes:
- Staple kitchen pantry ingredients
- no special equipment needed (one bowl and a fork, that's it!)
- ready in 25 minutes
- 2.3g net carbs per square
And the taste! Ultra buttery and oozing peanut butter flavour, studded with chocolate chips... I'm salivating all over again.
In a nutshell, keto blondies are the blonde counterpart to my fabulously fudgy keto brownies. They are equally irresistible!
Ingredients
Here are the ingredients I used:
- Peanut Butter - I used smooth peanut butter. It must be nice and soft. You don't want the last hard dregs from the bottom of the pot. Ideally, choose a brand that contains just 1 ingredient - peanuts.
- Almond Flour - I use ground almonds in most of my recipes, this one included. Super-fine almond flour works equally well.
- Butter - melted and cooled. My butter was unsalted, but salted butter would give an interesting flavor lift.
- Eggs - Large, room temperature eggs is the way to go.
- Sweetener - I used a granulated monk fruit erythritol mix in this recipe. A golden erythritol would also be great here. You can replace the erythritol with either xylitol or allulose, which would make the blondies even softer.
- Baking Powder
- Vanilla Extract
- Sugar Free Chocolate Chips - A popular brand is Lily's. I simply made my own using 90% Lindt chocolate. I melted the chocolate and then poured it into a pyramid silicone baking mat. Or, make sugar free chocolate chips from scratch!
See the recipe card for full information on ingredients and quantities.
Instructions
Let's make easy keto blondies! Here are the basic steps.
You begin by lining a baking pan (mine measured 8 x 6 inches) with parchment paper. Also, preheat the oven.
STEP 1
Melt the butter (1 minute on high in the microwave). Then, add all ingredients except the chocolate chips to a large mixing bowl.
STEP 2
Stir with a fork until you have a smooth batter. Then, fold in the chocolate chips, holding some back to scatter over the top.
STEP 3
Fill the blondie batter into a prepared dish and scatter the remaining chocolate chips over the top.
STEP 4
Bake the blondies in the preheated oven for 20 minutes. After that, the top was golden and set, but the middle was still jiggly, a bit like a baked cheesecake.
It looked like this:
Expert Tips
#1 Always taste the batter before baking and adjust the sweetener. I don't have much of a sweet tooth, so you may prefer it a little sweeter!
#2 Don't over-bake low carb blondies! You WANT them to be slightly under-baked and on the fudgy side. That's how they taste best.
#3 Let them cool fully before cutting! They are very soft when hot and firm up as they cool.
Variations
Use different nut butter: Even though these are keto peanut butter blondies, you can replace the peanut butter with any nut butter of your choice, such as almond butter.
Dairy-free blondies: Replace the butter with coconut oil.
Nut free blondies: My go-to nut-free replacement for almond flour is a 50-50 blend of sunflower seed flour and sesame seed flour.
Coconut flour blondies - I have not tested this yet, but here is my suggestion: Replace the almond flour with ⅓ cup / 40g coconut flour and add an additional egg. Coconut flour bakes up more brittle than almond flour and I think it will need the additional binder. Or, try my recipe for coconut blondies.
Storage
Store keto blondies in an airtight container at room temperature for up to 3 days or in the fridge for up to 1 week.
Alternatively, freeze them for up to 6 months. I always slice them before freezing, so I can defrost one square at a time.
More Keto Brownies
After trying this blondies recipe, take a look at my keto peanut butter brownies. And here are more brownie recipes you may enjoy:
- Keto Coconut Flour Brownies40 Minutes
- Healthy Pumpkin Brownies30 Minutes
- Keto Avocado Brownies Recipe55 Minutes
- Keto Cheesecake Brownies40 Minutes
Tried this recipe? Give it a star rating below!
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Recipe
Best Keto Peanut Butter Blondies
Video
Ingredients
- ½ cup / 130g peanut butter smooth
- 1 cup / 100g almond flour
- ½ cup / 120g butter, melted
- 2 eggs large
- ½ cup / 90g granulated sweetener
- 1 teaspoon baking powder
- 1 teaspoon vanilla extract
- ⅓ cup / 40g sugar free chocolate chips or chopped 90% dark chocolate
Instructions
- Preheat the oven to 180 C / 350 F and line a rectangular oven proof dish with parchment paper (Mine was 20 x 15 cm / 8 x 6 inch).
- Melt the butter and put all ingredients except for the chocolate chips in a bowl. Stir together with a fork. Then, stir through the chocolate chips, holding a few back to scatter over the top.
- Fill the batter into the oven proof dish and scatter the remaining chocolate chips over the top.
- Bake for 20 minutes or until lightly golden on top. The centre should still be soft and jiggly.
- Let cool fully before cutting.
Caroline
Yum. This was the perfect snack to go with afternoon tea. I loved the smooth peanut butter taste, complimented with chocolate chips. I used Lindt sugar free milk chocolate and had to add about a tbspn more almond flour as my mixture was a bit runny, despite measuring the ingredients on scales. I love your recipes. Thank you so much.
Wanda
These are the best brownies hands down! Thanks for the recipe.
Rachel
These looked amazing, and the consistency was fudgey, but I was disappointed in the taste. I think next time I may add in more sweetener (coming from someone who doesn’t like a lot of sweetness).
Katrin Nürnberger
Hi Rachel, if you try the recipe again do make sure that you taste the batter to see whether you really need more sweetener. 1/2 cup is not insignificant and should be enough. Of course, you can always add more. Perhaps it's something else that you were looking for, though. You could consider adding a pinch of sea salt, for example, or more vanilla extract. Or, choose a more flavourful peanut butter such as a deep roast.
Maxine holden
These peanut butter blondies are amazing.
Sue Taylor
Hi, not keen on almond flour. Can i substitute this with another flour?
Katrin Nürnberger
You could try with 1/3 cup or about 35 grams of coconut flour. I have not tried it yet in this recipe, but this is the conversion ratio I would use. Another substitution that works quite well is use half sunflower seed flour and half sesame seed flour (50g each).
Donna McDuffie
What about all purpose flour?
Katrin Nürnberger
I don't use or recommend all purpose flour because it is not low carb. Some people say that it's a 1:1 substitution for almond flour, but since it is much finer than almond flour my guess is that you may need to use a little less.
Marianne
Very easy and veeery delicious!
Joanna
These are so good! I decided to brown my butter and add the peanut butter to that to melt before mixing with everything else. I also added a teaspoon of gelatin for more chew and underbaked them a little. They came out so fudgy and delicious! Something about the combination of ingredients actually has a taste that is reminiscent of chocolate banana (just slightly). Whatever that chemistry is I don’t care because these are fantastic.
Katrin Nürnberger
Thank you for sharing your tweaks! Sounds delicious.
Sandi
What a treat for someone like me on a low carb diet! These bars are delicious just like all your recipes I've tried so far! I have some of your cookbooks too and they are wonderful assets to my low carb menu. Thank you!
Katrin Nürnberger
Really happy that you are enjoying the recipes, including these blondies!
Toni
If I double the recipe, would I double the pan size?
Katrin Nürnberger
Yes, that is correct - unless you want to make thicker blondies, in which case you may also need to increase the baking time by a little.
Tiny
I made these this afternoon, and they are so easy and quick.
They taste great, 5*
Thank you