This Keto Chocolate Chip Peanut Butter Skillet Cookie is the ultimate low-carb treat to totally satisfy your sweet tooth!

Keto Chocolate Chip Peanut Butter Skillet Cookie!!! How have we not had a peanut butter cookie recipe on CIK until now?? That should be a crime.
We made this skillet cookie in our 8" deep dish cast iron skillet. Don't have one of those? No worries! Simply use an 8x8 baking dish!
Here are a few ways to crank up the flavor even more:
- Brown the butter, sort of like with our Keto Browned Butter Chocolate Chip Cookie.
- Add a splash of pure vanilla extract, bourbon vanilla, or our personal favorite, vanilla bean paste.
- Leave out the chocolate chips.
- Add chopped Lily's Peanut Butter Cups to the cookie (YES, definitely do that and report back to us please!
- Serve with a scoop of Keto Pint Peanut Butter Cup Ice Cream, yum!
- Add a drizzle of extra peanut butter over the top.
Enough options? We thought so. Enjoy!

Keto Chocolate Chip Peanut Butter Skillet Cookie
This Keto Chocolate Chip Peanut Butter Skillet Cookie is the ultimate low-carb treat to totally satisfy your sweet tooth.
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Servings: 16
Calories: 225kcal
Ingredients
- 1 16oz jar natural creamy peanut butter
- ⅔ cup powdered erythritol
- ¼ cup unsalted butter melted
- 2 large eggs
- 1 teaspoon baking soda
- ½ cup sugar-free chocolate chips optional
Instructions
- Preheat oven to 350° F and grease an 8” cast iron skillet.
- In a medium bowl, mix together all of the ingredients, except ¼ cup of the chocolate chips, until smooth. Pour the batter in the prepared pan, top with remaining chocolate chips and transfer to the oven.
- Bake for 22-25 minutes until the edges are crispy but the center is still soft. Remove from oven and let cool completely before slicing.
Nutrition
Nutrition Facts
Keto Chocolate Chip Peanut Butter Skillet Cookie
Amount Per Serving
Calories 225
Calories from Fat 176
% Daily Value*
Fat 19.5g30%
Carbohydrates 7.3g2%
Fiber 3.6g15%
Protein 8.2g16%
*
Nutritional values are estimates only and do not include carbs from sugar alcohols.
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Ailsa says
Oh I have to try this. NO almond or other keto-friendly flour? Amazing. It reads like a magic trick. Looks fabulous, and who doesn't love peanut butter? Thanks!
Tori McFadden says
How many slices are we looking at? Is it 7g of carbs per slice? Do we have to let it cool?
Jeff says
Chocolate chips are NEVER optional! 🙂
Barb Ruka says
The nutritional facts - is that the whole 8" cookie?
Marci Olmstead says
I am worried that it has no "flour" in it. I have reread over and over, hope it's not a typo. Just whipped it up and crossing my fingers. ?. Sounds amazing.
Alex Lester says
Nope, no flour. Hope you enjoyed it!
Meg says
A little disappointed in this but maybe due to the PB I used? I used Smucker's Natural PB, which is basically ground up peanuts. It turned out a little weird...too eggy a texture and surprisingly lacking in peanut butter flavor. Would a different PB have been better?
BlackKeto says
Really really dry. Somewhat moist in the middle but dry everywhere else. Waited 7 hours to slice and it just crumbled. Tastes ok, not especially peanut buttery as the previous post mentioned. May try again with cooking time cut by 5 min.