Keto Peanut Butter Bars
If you’re on a keto diet or simply looking for a delicious, low-carb treat, these Keto Peanut Butter Bars are a game changer! With a delightful combination of flavors and textures, they are perfect for satisfying your sweet tooth without derailing your healthy eating plan. Plus, they’re super easy to make, allowing you to whip up a batch in no time. Let’s dive into why these bars deserve a spot in your recipe collection.
Why It Deserves a Spot

These Keto Peanut Butter Bars are not just another dessert; they are a nutritious, filling, and indulgent snack that fits perfectly into a low-carb lifestyle. Rich in healthy fats from peanut butter and coconut oil, they provide sustained energy without the sugar crash. Made with almond flour and sweetened with Lakanto, these bars are gluten-free, sugar-free, and packed with flavor. They’re ideal for an afternoon pick-me-up, a post-workout snack, or even a guilt-free dessert after dinner. Whether you’re meal prepping or simply craving something sweet, these bars will become a staple in your home.
What to Buy
To make these Keto Peanut Butter Bars, gather the following ingredients:
- 1.5 cups (150g) almond flour – a low-carb alternative to regular flour that adds great texture.
- 3 tbsp (30g) Lakanto Classic – a monk fruit sweetener that provides sweetness without carbs.
- 5 tbsp (70g) butter, melted – adds richness and flavor to the bars.
- 1 cup (190g) firm peanut butter – make sure it’s not runny and contains no added sugars or oils.
- 3 tbsp (45g) butter, melted or coconut oil – for the chocolate topping, choose your favorite!
- 2 tbsp (20g) Lakanto Classic powdered – for sweetening the chocolate layer.
- Salt to taste – enhances the flavors of the bars.
- 4.4 oz (125g) sugar-free chocolate or dark chocolate – at least 85% cocoa solids works best for a rich topping.
- 2 tbsp (28g) coconut oil or butter – for melting with the chocolate topping.
Prep & Cook Tools
Before you start, ensure you have the following tools handy:
- Mixing Bowl – for combining your ingredients.
- Spatula – to mix and spread the batter evenly.
- 9×9 inch Baking Pan – for baking your bars; line with parchment paper for easy removal.
- Double Boiler or Microwave-Safe Bowl – for melting chocolate and coconut oil.
- Measuring Cups and Spoons – to accurately measure your ingredients.
Keto Peanut Butter Bars in Steps

Step 1: Prepare the Baking Pan
Begin by preheating your oven to 350°F (175°C). Line a 9×9 inch baking pan with parchment paper, leaving some overhang on the sides for easy removal.
Step 2: Mix the Base
In a large mixing bowl, combine the almond flour, 3 tablespoons of Lakanto Classic, and a pinch of salt. Stir until well mixed.
Step 3: Add the Wet Ingredients
Add the melted butter and firm peanut butter to the dry ingredients. Mix everything together until you have a thick, cohesive dough.
Step 4: Spread in the Pan
Transfer the mixture into the prepared baking pan. Use a spatula to evenly spread the dough, pressing it down firmly to create a smooth, flat layer.
Step 5: Bake the Base
Place the pan in the preheated oven and bake for 15-20 minutes, or until the edges are golden brown. Keep an eye on them to avoid over-baking.
Step 6: Prepare the Chocolate Topping
While the base is baking, melt the sugar-free chocolate with the coconut oil (or butter) in a double boiler or microwave. Stir until smooth and combined. Once melted, mix in the powdered Lakanto Classic for sweetness.
Step 7: Assemble the Bars
Once the base is done baking, remove it from the oven and let it cool for a few minutes. Pour the melted chocolate mixture over the top, spreading it evenly with a spatula.
Step 8: Chill and Set
Let the bars cool at room temperature for a few minutes before placing them in the refrigerator. Allow them to chill for at least 1 hour, or until the chocolate has set.
Step 9: Slice and Enjoy!
Once set, remove the bars from the pan using the parchment paper overhang. Slice into squares or rectangles, and enjoy your delicious Keto Peanut Butter Bars!
Better Choices & Swaps

If you want to customize your bars, consider these options:
- Use almond butter instead of peanut butter for a change in flavor.
- Swap coconut oil for butter for a dairy-free version.
- Try adding chopped nuts or seeds for extra crunch and nutrition.
- Replace Lakanto with another low-carb sweetener, like erythritol or stevia, to suit your preference.
Problems & Prevention
To ensure your Keto Peanut Butter Bars turn out perfectly, keep these tips in mind:
- Make sure to measure your ingredients accurately, especially the almond flour and sweeteners.
- Do not skip the chilling step; this allows the bars to firm up properly.
- If the chocolate topping is too thick, add a bit more coconut oil to achieve a smoother consistency.
- Be cautious not to over-bake the base, as it can become dry and crumbly.
Leftovers & Meal Prep
These Keto Peanut Butter Bars are perfect for meal prep and can be stored for later enjoyment:
Once cooled and sliced, store the bars in an airtight container in the refrigerator for up to a week. For longer storage, freeze the bars by placing them in a single layer in a freezer-safe container or bag. They will keep well for up to a month. Simply thaw them at room temperature when you’re ready to enjoy a tasty snack!
Ask & Learn
Can I use other nut flours instead of almond flour?
Yes! You can try using coconut flour, but be aware that coconut flour absorbs moisture differently, so you may need to adjust the liquid ingredients accordingly.
What if I can’t find Lakanto sweetener?
If Lakanto isn’t available, any low-carb sweetener like erythritol or monk fruit sweetener will work well. Just make sure to adjust the quantity to match the sweetness you’re aiming for.
Can I make these bars dairy-free?
Absolutely! Simply substitute the butter with coconut oil and ensure that your chocolate is dairy-free as well.
How can I add more flavor to the bars?
You can incorporate vanilla extract or a sprinkle of cinnamon into the base mixture for added flavor. Chopped nuts or sugar-free chocolate chips can also enhance the taste and texture!
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Ready to Cook?
Get ready to indulge in these delicious Keto Peanut Butter Bars! With easy-to-find ingredients and straightforward instructions, you’ll have a delectable treat that satisfies your cravings while keeping you on track. Happy baking!

Keto Peanut Butter Bars
Ingredients
Equipment
Method
- Step 1: Prepare the Baking Pan: Preheat your oven to 350°F (175°C). Line a 9x9 inch baking pan with parchment paper, leaving some overhang on the sides for easy removal.
- Step 2: Mix the Base: In a large mixing bowl, combine the almond flour, 3 tablespoons of Lakanto Classic, and a pinch of salt. Stir until well mixed.
- Step 3: Add the Wet Ingredients: Add the melted butter and firm peanut butter to the dry ingredients. Mix everything together until you have a thick, cohesive dough.
- Step 4: Spread in the Pan: Transfer the mixture into the prepared baking pan. Use a spatula to evenly spread the dough, pressing it down firmly to create a smooth, flat layer.
- Step 5: Bake the Base: Place the pan in the preheated oven and bake for 15-20 minutes, or until the edges are golden brown. Keep an eye on them to avoid over-baking.
- Step 6: Prepare the Chocolate Topping: While the base is baking, melt the sugar-free chocolate with the coconut oil (or butter) in a double boiler or microwave. Stir until smooth and combined. Once melted, mix in the powdered Lakanto Classic for sweetness.
- Step 7: Assemble the Bars: Once the base is done baking, remove it from the oven and let it cool for a few minutes. Pour the melted chocolate mixture over the top, spreading it evenly with a spatula.
- Step 8: Chill and Set: Let the bars cool at room temperature for a few minutes before placing them in the refrigerator. Allow them to chill for at least 1 hour, or until the chocolate has set.
- Step 9: Slice and Enjoy!: Once set, remove the bars from the pan using the parchment paper overhang. Slice into squares or rectangles, and enjoy your delicious Keto Peanut Butter Bars!
Notes
- Measure your ingredients accurately for the best results.
- Do not skip the chilling step; it helps the bars firm up properly.
- Add more coconut oil to the chocolate topping if it's too thick.
- Avoid over-baking to prevent dry bars.
