Table of Contents

  • What is the keto diet?
  • Recipe: Keto Cast Iron Skillet Cookie
  • How to make healthier skillet cookies
  • Other keto desserts to make with a cast iron skillet

The ketogenic diet (or keto, for short) is a low-carb, high-fat diet that many follow for weight loss and disease prevention. When following a keto diet, carbs are drastically reduced to 20 to 50 grams per day, with fats delivering 75 percent of calorie intake, and protein delivering 10 to 30 percent of calorie intake.

Following a keto diet results in the body relying on fat as its main source of energy instead of glucose, which puts the body into ketosis. Ketosis is a process that happens when your body doesn't have enough carbohydrates to burn for energy. Instead, it burns fat and makes things called ketones, which it can use for fuel.

Staples of the keto diet include fish, meat, eggs, dairy, oils, and green vegetables. Carbohydrate-rich foods like rice, pasta, grains, potatoes, and even fruits are strictly prohibited.


Keto Cast Iron Skillet Cookie

There are many recipe tricks out there to make normally carb-heavy foods keto-friendly—including desserts! Cookies, cakes, pancakes, and pies can all be made to suit a keto diet by swapping out certain ingredients and omitting flour.

Our recipe for a low-carb browned butter chocolate chip skillet cookie gives you the best of both worlds when craving a rich dessert while sticking to keto.

Recipe: Peanut Butter and Chocolate Chip Keto Cast Iron Skillet Cookie

Yield: 6 to 8 servings



Preheat the oven to 350°F and position a rack in the middle. Grease a Field No.8 Skillet with butter.


In the bowl of a stand mixer fitted with a paddle (or using a handheld electric mixer), beat the butter, peanut butter, brown sugar erythritol, and granulated erythritol at medium-low speed until fluffy, 2 to 3 minutes.


Beat in the eggs, one at a time, mixing well after each addition.


Add the vanilla and salt and beat to combine.


Add the baking soda and almond flour and mix at low speed until just incorporated. Add the chocolate chips and use a rubber spatula to stir until even distributed.


Transfer the cookie dough to the skillet and spread into an even layer. Bake for 30 to 35 minutes, or until golden brown and almost set in the center.


Let the keto skillet cookie cool in the skillet for 10 to 15 minutes, then cut into wedges and serve, or transfer to a plate to cool completely (the cookie might stick to the skillet if allowed to cool completely there).

How to make healthier skillet cookies

While this low-carb skillet chocolate chip cookie does follow keto guidelines, it is definitely not the healthiest dessert you could possibly make. Here is a substitution you can make if you’re looking for an even healthier version of this keto skillet cookie by making it both keto and dairy free.

To make this cookie completely vegan, you can substitute the butter for dairy-free butter or coconut oil. Swap the eggs out for a vegan egg substitute (such as a flax egg, Just vegan egg, or an equivalent amount of applesauce).

Other keto desserts to make with a cast iron skillet

If you search for “keto recipes” on the Internet, you’re sure to find millions of results, as it’s been wildly popular on the internet and social media over the past couple of years. Here are some of the most delicious looking keto recipes we’ve found that work great in Field Skillets.