Low Carb Peanut Butter Cookies

Low Carb Peanut Butter Cookies

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Warning, baking these Low Carb Peanut Butter Cookies can be quite costly! In fact, the last time I made them, they cost me $2800! You probably think I’m joking, but I’m not.


As usual, I had my furry friends (Mr. Whiskers and Winston) in the kitchen, begging for a sample of what I was making. Since dogs are known to love peanut butter, I happily obliged. Within thirty minutes, Winston began vomiting, and I had to rush them both to the animal hospital.

$2800 later, I learned that dogs can’t digest sweeteners. Sweeteners, it turns out, are actually very toxic to dogs, who knew? So, enjoy these low carb peanut butter cookies, but please don’t share them with your dogs. On a side note, cats are not affected in the same way.

To learn more about how xylitol ingestions affect dogs, please read this informative post.

two terriers looking up at a spoon of cookie dough with blue tile in the background.
Yes, shamefully, I even documented the sad event with pictures!

How do you make Low Carb peanut butter cookies?

The basic recipe for sugar-free peanut butter cookies is pretty simple. All you need is peanut butter, eggs, and some granulated sweetener like Splenda, Xylitol, or Truvia.

Those are the basic ingredients, but this recipe definitely needed some improvements. For one thing, it needed more flavor. To enhance the flavor, try mixing in some vanilla or banana extract. After all, even Elvis knew that peanut butter and bananas go hand in hand; peanut butter and banana was Elvis’ favorite sandwich.

Another common complaint with sugar-free and flour-free cookies is that they’re too crumbly. Adding baking powder, and coconut oil is a great solution. To add a little crunch, think about adding some ground peanuts.

low carb peanut butter cookies dough in a mixer
cookies on a napkin

Adding Sugar-Free Jam

Another variation of this recipe is to make thumbprint peanut butter cookies and fill them with your favorite sugar-free preserves.

Start out with the basic recipe, using a medium-sized cookie scoop to form the cookies. Next make an imprint in the center of each cookie with your finger or thumb, leaving an indent. Once baked, and cooled, place a teaspoon of the preserves in the center of each cookie.

It’s true, you can’t have peanut butter and jelly sandwiches when you’re on a low-carb diet. However, you can enjoy peanut butter and jelly cookies, which might be even better! Just keep in mind, even though these cookies are low in carbs, they still contain calories. So eat them in moderation, and share… just not with your pets!

raw cookie dough with an indent in the center on parchment paper
peanut butter cookie on a spatula with more cookies in the background
peanut butter cookie with raspberry jam in the center
stacked low carb cookies with peanuts
Low carb peanut butter cookies with nuts.

Here are a few other low-carb recipes for you to try: low carb spinach and eggs, jalapeno poppers, and low carb seed crackers.

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peanut butter cookies pin
5 from 3 votes
cookies cooling on a rack
Low Carb Peanut Butter Cookies
Prep Time
15 mins
Cook Time
15 mins
Total Time
30 mins

Sugar-free cookies

Course: Dessert, Snacks
Cuisine: American
Servings: 22 cookies
Calories: 64 kcal
  • 3/4 cup peanut butter
  • 1 large egg
  • 1/3 cup Xylitol or Splenda (granulated sweeter)
  • 1 tsp. banana extract
  • 1/4 tsp. baking powder
  • 1 T. coconut oil (liquified)
  • sugar-free preserves (optional)
  1. Preheat oven to 350 Degrees F.

  2. Add all the ingredients (except the preserves) in an electric mixer. Mix until thoroughly combined.

  3. Using a small cookie scoop, scoop cookie dough, and place on parchment-lined cookie sheet. Score the top of the cookie dough with a fork. Bake for 15 minutes.

  4. If using preserves, place scoops of dough on the cookie sheet, and make an indent in the center of the dough with your finger or thumb. Bake for 15 minutes. Once cool, fill the center of each cookie with 1 teaspoon jam. 

Nutrition Facts
Low Carb Peanut Butter Cookies
Amount Per Serving
Calories 64 Calories from Fat 45
% Daily Value*
Fat 5g8%
Saturated Fat 1g6%
Cholesterol 8mg3%
Sodium 50mg2%
Carbohydrates 3g1%
Fiber 1g4%
Sugar 1g1%
Protein 2g4%
* Percent Daily Values are based on a 2000 calorie diet.

4 thoughts on “Low Carb Peanut Butter Cookies”

  • 5 stars
    These sound interesting. I will try them and see how they turn out!
    I am so sorry about your pups! Are they totally fine? I have heard dogs can die from ingesting sweeteners. So glad you got them to the vet in time. $2,800.00 is a very expensive lesson!

  • Thanks, Kelly. Yes, it was quite stressful for a few days around here. So glad I took them in and that they were able to make a full recovery. As Scott said: “It’s only money…”

  • 5 stars
    Made these for the first time today and I’ll make them again. They are tasty and my picky husband liked them also. Thanks for sharing your story about the dogs too, had no idea.

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