Pecan Bars in Under 30 Minutes – Low Carb Too!

Stack of keto pecan bars on a white plate set on a dark tray
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Introduction

This one is not ours. It comes from Urvashi Pitre’s cookbook Easy Keto in 30 Minutes, and she gave us permission to share it — the book is full of recipes that are genuinely 30 minutes rather than nominally so, and this is one of them.

Calling them pecan bars sets the wrong expectation, though. There is no shortbread base and no filling: the whole thing is peanut butter and coconut oil melted together with sweetener, with chopped pecans through it, poured into a pan and frozen until firm.

So what you get is closer to fudge than to a pecan pie bar — smooth and rich, with the pecans doing all of the texture. It is also a no-bake recipe that is genuinely no-bake, which is rarer than it sounds.

Keto Peanut Pecan Bars

Prep Time
5 minutes
Cook Time
2 minutes
Additional Time
20 minutes
Total Time
27 minutes
Yield
16 bars
Course
Dessert
Cuisine
American

Ingredients

All Ingredients

Nutrition Facts

16 servings per recipe
Trans Fat 0g 0% 0g 0%
Cholesterol 0mg 0% 0mg 0%
Allulose 0g 0% 0g 0%

About these numbers: We are home cooks, not certified nutritionists. Nutrition is shared as a courtesy. We pick a representative product for each ingredient, and our recipe system works out the totals from the amounts in this recipe, so please treat them as a helpful estimate rather than a guarantee. The brands you buy, any swaps you make, and how generously you portion the recipe will all move these numbers.

Directions

  1. Gather Your Ingredients.

    Five of them, and what each one is doing is in the Ingredient Notes below.

  2. Prepare the Baking Pan.

    Start by lining your 8-inch square baking pan with parchment paper. This step ensures your pecan bars won't stick to the pan, and you can remove them easily once they're set.

  3. Mix and Melt.

    Combine the peanut butter, coconut oil, and sweetener in a medium microwave-safe bowl. Pop this in the microwave for 2 minutes, stirring it halfway through to make sure everything is blending well. You'll want a smooth mixture before moving to the next step.

  5. Add Flavor and Texture.

    Time to introduce the vanilla (or maple) extract and the finely chopped pecans. Stir this mixture well to make sure the extract and pecans are evenly distributed. Then, pour your mixture into the prepared pan.

  6. Freeze and Cut.

    Pop the pan into the freezer until the pecan mixture sets, which should take about 20 minutes. Once firm, cut your treat into 16 evenly sized squares.

Notes

Ingredient Notes

  • Creamy peanut butter: The bulk of the bar and most of its flavor. There is no crust or base under it.
  • Coconut oil: Melted with the peanut butter at the start. It helps bind the bars and gives them a smooth texture.
  • Lakanto monk fruit sweetener: Granulated, and it goes into the bowl that gets microwaved rather than in at the end.
  • Vanilla or maple extract: One teaspoon, and it is a real choice rather than a default - vanilla reads warm and sweet, maple reads darker and closer to a pecan pie.
  • Pecans, finely chopped: The crunch, and the only texture in an otherwise smooth bar.

Tools You Need

  • An 8-inch square pan. That size is what gives the bars their thickness.
  • Parchment paper. It is what lets you lift the whole slab out in one piece to cut it.

Preparation

  • Start with the peanut butter and coconut oil at room temperature; they blend faster and need less time in the microwave.
  • Stir until the mixture is uniform before the pecans go in, or the sweetener settles and some squares end up sweeter than others.
  • Let it set completely before cutting. Bars cut while still soft crumble at the edges.

Storage

Firm first, then into an airtight container in the refrigerator, where they keep for up to a week. They soften at room temperature, so they are better served straight from the fridge.

Serving Suggestions

Sixteen squares from an 8-inch pan makes them small, which suits them - they are rich. A whole pecan pressed onto each one before it sets makes them look deliberate rather than cut from a slab.

Variations

While this is one of my favorite pecan bar recipes, you can customize them to suit your preferences.

  • Roast the pecans before adding them to the peanut butter mixture.
  • Use your favorite nut: Walnuts, almonds, or macadamia nuts work well for this recipe if pecans aren’t your thing.
  • Add chocolate! We are firm believers that adding chocolate to almost anything makes it better. Some chocolate chips would be a fantastic addition to these amazing Keto Peanut Pecan Bars.

Feel free to experiment with different ingredients or steps to make it truly your own. Who knows, your personal twist might just lead you to discover a whole new variation that’s just as delectable, if not more!

Frequently Asked Questions

Can I substitute the Lakanto monk fruit sweetener with another sweetener?

Yes, but use a granulated sweetener designed to replace sugar in a 1:1 ratio, or adjust the amount according to the manufacturer’s conversion guide. Check the label for net carbs and make sure the sweetener works in no-bake recipes.

Can I use other nuts in place of pecans?

Yes, you can replace pecans with other keto-friendly nuts like walnuts, almonds, or macadamia nuts.

What are my other options if I don't have vanilla or maple extract?

If you don’t have either extract, you can leave it out or use a small amount of another sugar-free flavor extract, such as almond extract. Start with less because some extracts are stronger than vanilla. Avoid maple syrup or corn syrup if you want to keep the bars low in sugar and carbs.

How should I store them, and can I make them ahead?

Both are the same question here, because there is no version of this recipe that is not made ahead - the bars have to set before they can be cut, so the waiting is part of making them rather than a concession to planning.

For how long they last and what container to use, the Storage note on the recipe card has it. The one thing to add is that they do not travel well at room temperature.

Instead of creamy peanut butter, can I use chunky peanut butter?

Using chunky peanut butter will result in a different texture. It can be a good variation if you prefer additional crunch in your bars. However, creamy peanut butter gives a smoother consistency.

Can I add chocolate chips to this keto pecan bar recipe?

Yes, you can sprinkle sugar-free chocolate chips on top for a chocolaty twist. Just make sure that the added ingredients are keto-friendly.

Wrap Up

The extract is the one decision to make before you start. Vanilla keeps them tasting of peanut butter; maple pushes them toward the pecan pie the name suggests. Either is a teaspoon, and you cannot add it later once the mixture has set.

They are on our keto Thanksgiving recipes page as the small no-bake sweet, next to the pecan pie and the pecan pie cheesecake rather than in place of them.

Have you tried this recipe or another pecan recipe on our blog? How did it turn out? I always love hearing from you, so please rate the recipe and share your experience in the comments.

And don’t forget to share your results with us on Instagram. Use the hashtag #buttertogetherkitchen, and we would love to feature your delightful treats on our page!

Updated — September 22, 2026: What each of the five ingredients does is now spelled out in the recipe card's notes, and storing them and making them ahead have one clear answer instead of two.