Birthday Cake Skillet Cookie

This low carb skillet cookie is easily one of my favorite recipes to ever go on my blog. It’s extra gooey, loaded with fun birthday cake sprinkles, and has a slightly crisp bottom that crackles when you cut into it. You know what I’m talking about.

Looks decent, right? And even better, the entire recipe has just 30 grams of carbs!

A simple low carb skillet cookie recipe with 15 grams of protein, 6 net carbs, and 230 calories per serving.

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Ingredients for This Low Carb Skillet Cookie

You’ll only need a handful of ingredients to make this high protein, low carb skillet cookie. There are a few potential modifications for each ingredient that I’ll quickly cover below.

Can I Substitute All Purpose Flour for Almond Flour?


It’s difficult to find a definitive answer on ratios to use with almond flour for all purpose flour. But in my experience, you can swap them gram for gram in most recipes. In this low carb skillet cookie, for example, I made a second using 1/2 cup all purpose flour that worked beautifully.

If you’re thinking of using something like coconut flour, on the other hand, I might caution against it with this recipe. Since coconut flour is so absorbent you’ll need to reduce the amount of flour used or increase the amount of fat and liquid used. Both of these are likely to throw off the texture and density of the cookie (read: dry and tough).

birthday cake protein skillet cookie

What if I don’t have Birthday Cake Protein Powder?

I used PEScience Select which is a blend of whey and casein protein. The added casein makes this protein powder a bit thicker than whey-only powders. So if you’re using something else, you may need to add more protein powder. 

The most important thing to keep in mind when using other protein powders, aside from the type of protein itself, is scoop size. A scoop of PEScience weighs 31 grams. 

I’ve included the original recipe which used Bowmar Nutrition birthday cake in the recipe card’s notes section.

Can I use real butter or another fat? 

The recipe calls for light butter which has 50 calories per tablespoon as opposed to the 100 calories in real butter. Like any lighter product, the real thing is always better. So if you’re okay with the added fat, go right ahead.

I’ve also added apple sauce, which acts as a fat replacement in baking. If you want an extra gooey cookie, go with 1/2 cup butter and omit the apple sauce. 

inside birthday cake low carb skillet cookie

Final Low Carb Skillet Cookie Notes

I topped my protein skillet cookie with some lower calorie ice cream. When it comes to lighter ice creams, I don’t love the high priced options that are marketed as healthy ice cream.

Something like Edy’s Slow Churned Ice Cream or even generic store brands frozen yogurt will have similar calories per serving. You may sacrifice a few grams of protein and some added carbs per scoop, but I’ll leave that up to you!

low carb skillet cookie in a mug with ice cream

Fat free whipped topping also goes great with this low carb skillet cookie, and that’s a much lower calorie topping than ice cream.

Let me know what you think about this low carb skillet cookie by taking a pic and tagging me on Instagram @mason_woodruff. Or you can join my free Facebook group and share it with the Proton Party.

low carb skillet cookie with protein powder

Low Carb Skillet Cookie

Yield: 4 servings
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes

A gooey skillet cookie made with almond flour, protein powder, and confetti sprinkles for a good time.


  • 1/2 C (56g) Blanched Almond Flour
  • 2 scoops (62g) PEScience Protein Powder, vanilla or cake pop
  • 1/4 C (36g) Granulated Sugar Substitute, I used Swerve Granular
  • 1/3 C (74g) Light Butter, I used Land O' Lakes with canola
  • 1/4 C (60g) Unsweetened Apple Sauce
  • 1 Tbsp (12g) Rainbow Sprinkles
  • 1/4 tsp Cake Batter Extract


  1. Preheat oven to 350F and spray a 6.5” cast iron skillet or oven safe pan that’s similar in size with a bit of nonstick cooking spray.
  2. Mix the dry ingredients together. dry ingredients for low carb skillet cookie
  3. Microwave the butter for 5-10 seconds to soften before mixing with the apple sauce and cake batter extract. butter, apple sauce, and cake batter extract
  4. Add to the dry ingredients and stir until a dough forms. wet ingredients added to the mixed dry ingredients
  5. Add the cookie dough to the skillet and use a rubber spatula to spread it to the edges and smooth the top. skillet cookie before baking
  6. Bake for 18-22 minutes or until the center is set but slightly gooey inside. Don’t over cook—it’s better slightly underdone than overdone. (If you use a larger pan/dish, reduce the cooking time since the cookie will be thinner.)
  7. Top with ice cream or low fat whipped cream and dig in.


  • Each serving has 6 Smart Points and 6 net carbs. 
  • Nutrition facts do not include any nutrition info from the Swerve granular. 
  • If you'd rather use all purpose flour, swap it gram for gram with the almond flour.
  • You can find the skillet, cake batter extract, and other tools and ingredients I use on my Amazon list
  • The original recipe with Bowmar Nutrition protein powder used 3 scoops birthday cake protein powder, 1/2 cup light butter, and 3/4 cup almond flour. 

Nutrition Information:
Yield: 4 servings Serving Size: 1 serving
Amount Per Serving: Calories: 230Total Fat: 17gCarbohydrates: 7.5gProtein: 15g

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24 thoughts on “Birthday Cake Skillet Cookie”

  • Currently cutting weight for CPU Nationals…. This recipe made my life so much easier!!!! Had multiple times a week for dessert.

  • I love love loved this recipe once I used the birthday cake protein from Bowmar. I tried it with a Vanilla protein powder I had on hand while i was waiting for my Bowmar protein to arrive. It was dry and grainy so I was a bit discouraged. But once I switched up the protein it was soooo good. I substituted unsalted grass fed butter . This recipe is like the famous “pizookie” or pizza cookie that is very popular at a restaurant chain near where I live, which is what drew me to this recipe. Add a scoop of halo top ! . Mind Blown!

  • “I DID IT ALL FOR THE COOKIE” – A Protein cookie in a skillet? skeptical? TRUST ME…Don’t knock it till you try it!

    My husband and I committed to a “get healthy together” journey about a year ago. As we make progress and are seeing gradual and sustainable results, I have stepped up my game in the kitchen (with Mason’s help) to create healthier versions of tempting treats and descendant dishes.

    We are HUGE fans of Bowmar Nutrition and already had several of their protein powders on hand. This recipe is so easy to make with only a few ingredients (although I did send my husband to the store for an “official” skillet.)

    When I made this skillet cookie…the entire house filling with an amazing that put sugar cookie candle to shame. Once out of the oven, we couldn’t wait to try it and WHOA IT IS AH-MAZING…so much so that it has become a weekly staple for our sweet treat snacks. It keeps well after cooking for days and travels well in our cooler bags. I HIGHLY RECOMMEND you give this recipe a go!

  • I absolutely loved this recipe so much I made it twice! My friend also loved it and said she was surprised at how good it tasted. I need to buy a cast iron skillet, so instead of that I used a bread pan and it still turned out great. 🙂

  • I haven’t actually made this whole recipe yet, but I did use it to make edible protein cookie dough using Bowmar protein (PFC was better than PBC), light butter, and almond flour. Kind of fat-spendy, but yum!

  • If you are craving something sweet, this is it!!! However, I cut mine into 4’s because 1/8th is just crazy talk…. sometimes I eat part of piece 2… shhhh…. it’s just that good!

  • Love this recipe! I used it while on keto. I used vanilla protein powder and Lily’s baking chips instead of sprinkles to make it a chocolate chip skillet cookie! My boyfriend instantly asked for another one after finishing it!

  • I’ve made this a couple times. I’m not a sprinkles fan so I use regular vanilla protein and add chocolate chips. I made this for a coworker who is dieting and avoiding sugar, he loved it and begged for me to make him more.

  • I used GNC protein and this did not turn out well for me It was dry and crumbly- I need to make some modifications and try again.

  • I half this recipe and make it one serving. I use birthday cake protein and don’t need to add extra sprinkles. Perfect with some vanilla ice cream on top when it’s still warm.

  • This was the first recipe of Mason’s that I tried. It doesn’t have to be your birthday for you to enjoy this delicious treat. The ingredients are easy to find and the sprinkles give it an extra kick. It reminds me of Funfetti. Love the macros on it and has a good amount of protein per serving. #winning 😊🎂🎈

  • I loved this! I used the protein I had at time, which was a peanut butter cereal milk and it worked so well with this recipe. I would next time add a little more protein powder to give it additional flavor!

  • Super delicious! A nice treat for someone who watches their carb intake. I used Bob’s Red Mill Low-Carb baking mix instead of blanched almond flour and it tasted just fine.

  • This recipe is delicious! I love cast iron skillet cookies. I always search for Mason’s recipes before looking anywhere else and is always on the healthy side and the instructions are on point for making it yourself!!

  • So good! Have been making this in my little cast iron skillet at least once a week now and it is soo good!! I did sub the applesauce fir canned pumpkin and halfed the almond flour and put 1/4 cup of hazelnut flour and 1/4 cup of oat flour and it was bomb!! Definitely recommend this way! It gave the whole dessert a very nutty, roasted flavor and the pumpkin kept it extra moist! I also added pumpkin pie spice and it was literally fall in a skillet! Worked just as good as the first time👌🏼

  • Am I crazy, I added up the macros and it was way more than 210 cals? Is it one serving size per skillet?

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