The Holy Grail of Low Carb Brownies!

So many things went right in this recipe, it’s a wonder people eat “normal” brownies at all! Cast iron skillet brownies are easy to make and will give you both crispy edges and a delicious softer center! We finally broke in our small cast iron skillet that’s perfect for desserts like these. Our skillet is about 6 inches in diameter and can produce desserts to feed 4-8 people, depending on the sweet tooth ;). Read about how to season and clean your cast iron skillet so make it last forever.

To make this recipe even better, the TOTAL net carb count for a giant brownie is 12g of carbs! Split that between 4 hungry people and each would eat only 3g of carbs! Split it with even more friends and family and you’re all staying in ketosis just fine.

Erythritol, a sugar alcohol that is not digested by human bodies, was a miracle for us, so we use it quite frequently in baking. It’s low carb, low calorie and has a glycemic index of 0 so it does not spike blood sugar and does not cause an insulin response. It also doesn’t cause tooth decay like sugar does! A sugar alcohol that doesn’t sit well for us, however, is maltitol, so we try to avoid it. It’s commonly found in sugar-free syrups and Atkins bars. Then again, some people report no problems so it all depends on the body eating it.

Subscribe for a FREE copy of our
4-Week Keto Meal Plan
  • 4 Weeks of Delicious Keto Recipes!
  • Leftovers and Bulk Preps Included
  • Maximize Your Keto Diet's Success
keto meal plan

In this recipe, we used a smaller amount of erythritol than we would’ve sugar. And because it is only 70% as sweet as sugar, this seemed counter-intuitive; shouldn’t we be adding more? We thought that after so long in ketosis, our tastebuds and bodies should be desensitized to very sweet foods. A normal recipe would call for ⅔ cup sugar for about 4 people. We only added ⅓ cup, and at 70% the sweetness, that’s a lot less! We tested it, and the brownies turned out amazing. They were still sweet, but the rest of the flavors were able to shine through! The cocoa, the nuts, the peanut butter and vanilla were all noted!


The consistency was dense, moist and super filling. You can substitute walnuts for any nuts; chopped hazelnuts would make this recipe taste a little like Nutella! If you don’t have a cast iron skillet, try doubling this recipe and pouring it into your regular brownie pan or baking dish.

Try this keto recipe, we guarantee they’ll be the best low carb skillet brownies you’ve ever tasted! Check out those macros, they’re unbelievable!

A note on safety: cast iron skillets get HOT! That includes their handles, which are the same material as the entire skillet. Use an oven mitt to handle this pan whenever it comes out of the oven. Use an oven mitt even after it’s been cooling for a long time. They retain heat very well and will take a long time to cool off. Safety first!

If you loved this recipe and are looking for more tasty brownie recipes, check out these keto fudge brownies from Simply So Healthy! They are easy to make and are perfect for a quick dessert when you don’t have a lot of time.

Let’s make some skillet brownies!

Low Carb Sugar Free Skillet Brownies

Low Carb Skillet Brownies
Low Carb Skillet Brownies
Votes: 267
Rating: 4.36
You:
Rate this recipe!
Print Recipe
Macros per serving:
• 333 Calories
• 31g of Fat
• 6g of Protein
• 3g of Carbs
Serves
4 servings
Prep Time
15 minutes
Cook Time
30 minutes
Serves
4 servings
Prep Time
15 minutes
Cook Time
30 minutes
Low Carb Skillet Brownies
Low Carb Skillet Brownies
Votes: 267
Rating: 4.36
You:
Rate this recipe!
Print Recipe
Macros per serving:
• 333 Calories
• 31g of Fat
• 6g of Protein
• 3g of Carbs
Serves
4 servings
Prep Time
15 minutes
Cook Time
30 minutes
Serves
4 servings
Prep Time
15 minutes
Cook Time
30 minutes
Servings: servings
Ingredients
Brownies
Peanut Butter Drizzle
Instructions
  1. Preheat your oven to 350F.
  2. Melt your butter on a small pan and let erythritol, or your choice of granulated sweetener dissolve it in. This takes a little longer than regular sugar, about 5 minutes.
  3. Pour the butter and erythritol into a mixing bowl and add your cocoa powder, salt and vanilla extract.
  4. Add in an egg and beat until thoroughly combined.
  5. Add almond flour and baking powder to help the brownie rise a bit.
  6. This step is optional: fold in your choice of nuts or add-ins. We added chopped walnuts for that classic brownie taste.
  7. Pour your brownie batter into a 6 inch cast iron skillet.
  8. Optional peanut butter drizzle: melt a tablespoon of butter and a tablespoon of peanut butter in the microwave or a small pan. You have a choice of baking the brownie with this drizzle, or adding it after baking. We added it before, but think it’ll look a little better if added after.
  9. Place the skillet brownie into the oven and bake for about 30 minutes. The top will be set but slightly jiggly. Do not over-bake, the brownie will continue cooking even out of the oven (cast iron skillets retain heat very well).
  10. If you haven’t already, add your peanut butter drizzle. You can also top it off with whipped cream or sugar-free chocolate syrup.
Tasteaholics, Inc. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Loved this recipe? Let us know! Something didn’t quite turn out right? Ask us in the comments below or contact us– we respond to comments every day and would love to hear from you and help you out! And check out all our keto recipes to learn to make more delicious and healthy meals!

NUTRITIONAL DISCLAIMER

The content on this website should not be taken as medical advice and you should ALWAYS consult with your doctor before starting any diet or exercise program. We provide nutritional data for our recipes as a courtesy to our readers. We use Total Keto Diet app software to calculate the nutrition and we remove fiber and sugar alcohols, like erythritol, from the total carbohydrate count to get to the net carb count, as they do not affect your blood glucose levels. You should independently calculate nutritional information on your own and not rely on our data. The website or content herein is not intended to cure, prevent, diagnose or treat any disease. This website shall not be liable for adverse reactions or any other outcome resulting from the use of recipes or recommendations on the Website or actions you take as a result. Any action you take is strictly at your own risk.

You’ll Love Our Dessert in Five Cookbook!

We believe that the key to success is simplicity and satisfaction with your diet. That’s why we created Dessert in Five – 30 low carb dessert recipes all using just 5 ingredients and 5 net carbs or fewer!

Enjoy strawberry cheesecakes, brownies, coconut cream pies, raspberry Danish cookies and much more every day of the month.

Dessert in 5. 30 keto dessert ideas. Up to 5 net carbs, 5 ingredients, and 5 easy steps for every recipe.30 low carb desserts

Vicky Abrams
Latest posts by Vicky Abrams (see all)

Have You Tried These Delicious Recipes?

This recipe was made with love by our amazing readers!