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My keto peanut butter bars are the perfect low-carb treat. They’re soft and chewy, and you don’t even need the oven! Only 2 grams of net carbs.
Need more no-bake keto desserts? Try my no-bake keto cookies, keto coconut clusters, and keto fudge next.
Peanut butter has been a staple of my diet, and I don’t plan on changing that any time soon.
My no bake peanut butter bars combine creamy peanut butter with coconut flour to create a soft and cakey bar. Pair that with a thick layer of melted chocolate, and you have a dessert no one can resist.
Table of Contents
Why I love this recipe
- Just 3 key ingredients. All you need is peanut butter, sugar-free syrup, and coconut flour.
- Diet-friendly. With no effort at all, these bars are naturally gluten-free, oil-free, grain-free, AND sugar-free.
- No baking required. This recipe takes less than 5 minutes to make, and honestly, the hardest part is waiting for them to firm up.
- A kid-friendly treat. There’s no oven and minimal measuring needed, so you can let the kids take over. They may make a bit of a mess, but that’s half the fun.
- They taste like Reese’s peanut butter cups! Yet they’re low-carb and made with wholesome ingredients.
Ingredients needed
- Peanut butter. Look for drippy, smooth peanut butter with no added sugar. If it’s a little firm, microwave it for 20-30 seconds to soften.
- Keto maple syrup. For sweetness and to bind the other ingredients.
- Coconut flour. My favorite no-bake flour that thickens the dough and keeps the bars soft and cakey. I also had some success with blanched almond flour, though if you go this route, you’ll need to add double the amount.
- Sugar-free chocolate chips. Optional, but if you want a peanut butter chocolate bar, drizzle some over the bars.
How to make keto peanut butter bars
I’ve included step-by-step photos below to make this recipe easy to follow at home. For the full printable recipe instructions and ingredient quantities, scroll to the recipe card at the bottom of this post.
Step 1- Prep. Line an 8×8-inch pan with parchment paper.
Step 2- Mix the dough. In a large mixing bowl, add all of the ingredients (except the chocolate, if using) and stir to combine. If the batter is too thin, add more coconut flour.
Step 3- Shape. Pour the batter into the lined pan and press firmly in place. If desired, melt the chocolate chips and spread on top of the peanut butter layer.
Step 4- Chill. Refrigerate the bars for 30 minutes before slicing and serving.
Arman’s recipe tips
- Adjust the consistency. Depending on the brand of peanut butter I’m using, sometimes the bar batter is too thin to hold its shape. If this happens, add more coconut flour or keto powdered sweetener.
- Cut the calories. Use low-calorie peanut butter.
- Add butter to the chocolate layer. While optional, I find a few tablespoons of melted butter keeps the chocolate layer from becoming brittle.
- Swap the peanut butter. Use almond butter, hazelnut butter, or for a nut-free bar, use sunflower seed butter.
- Top the bars with coarse sea salt for a salty-sweet flavor.
Storage instructions
To store: Leftovers can be stored in the refrigerator in an airtight container for up to one month.
To freeze: Place the bars in a ziplock bag and store them in the freezer for up to six months.
Frequently asked questions
The best keto-friendly peanut butter is one that’s all-natural with no added sugar.
More keto peanut butter recipes to try
- Keto peanut butter cups
- Keto peanut butter cookies
- Keto peanut butter smoothie
- Keto rice crispy treats
Keto Peanut Butter Bars
Ingredients
- 2 cups peanut butter
- 1/2 cup keto maple syrup
- 1/2 cup coconut flour * See notes
- 1 cup keto chocolate chips optional
Instructions
- Line an 8 x 8-inch pan with parchment paper and set aside.
- In a large mixing bowl, add your peanut butter, keto maple syrup, and coconut flour and mix well. If the batter is too thin, add more coconut flour.
- Transfer the batter to the lined pan and press firmly in place. If desired, melt the chocolate chips and spread over the top.
- Refrigerate the bars for 30 minutes, before slicing them and serving.
Delicious. I toasted some pecans in butter, then sprinkled them on top before drizzling the chocolate on. Amazing! The family went crazy for it.
Excellent.
Thank you for sharing your recipes for free 🙌🏽🤩
I’m Vegan and gluten free so a lot of the times I just wing it and use a different flour, not sure if that’s the reason why I have not mastered bread baking 😩😩
great recipe love it
Would this be doable with peanut flour (that has been hydrated to turn into “butter”)?
I don’t see why not- You might need to adjust the liquids.
I just tried these and they’re delicious, thanks for sharing your keto peanut butter recipes , can’t wait to try a few others.
Peanut butter desserts are ALWAYS on my radar. Yesterday I made my favorite two-ingredient peanut butter cookies and now my kitchen still smells like baked peanut butter. It’s splendid. I won’t be hopping off the peanut butter dessert train anytime soon–I am so ready to try out creating these peanut butter bars along with every single other PB dessert on your blog!
I am always looking for easy portable fat bombs to keep me going on the golf course. I just made these, and the ease and deliciousness will make them a staple in my kitchen and in my snack pack. Thanks for sharing!
😀 You are so welcome!
Excited to try these! I even got coworkers excited about them too!
YES!!! 😀
How big are the bar portions for the nutrition facts here?
Hi there, there are 20 portions in the recipe.
Have you tried almond or cashew butter with this recipe?
I sure have, I personally prefer cashew butter, as it is super mild tasting 🙂
I was also thinking that! Thanks! We are definitely going to try it.
It looks like you’re using non-natural peanut butter? Which would have sugar and hydrogenated fats…I’m worried it won’t set if I use natural, since it’s runny and not at all like the PB in your picture…
Hi there! I use smooth natural, with sets beautifully- Ensure it is the drippy kind 🙂
Peanuts aren’t paleo
Well aware of that, hence the peanut-free paleo option mentioned 🙂
by sticky sweetener of choice do you mean like agave nectar or something like that? Thank you so much!!
Sure thing 🙂
Peanuts (peanut butter) are a no-no on the Paleo diet. Tree nuts are allowed as snacks but peanuts are legumes. Pethaps the recipe can use almond butter instead.
Yep well aware of that 🙂 Hence the peanut-free option! 🙂