Addictive Recipes from a Self-Taught Baker

Chocolate Chip Cookie Cake

My favorite way to eat a chocolate chip cookie – when it’s the size of a cake! Decorate with frosting, slice, and serve. 

Chocolate Chip Cookie Cake with Milk Chocolate Frosting - the best way to eat a chocolate chip cookie! Recipe on

This is going to be your new favorite dessert. In fact, if you make 1 cake recipe from my blog, this has got to be it. Here’s why: It’s incredibly simple, super quick, straightforward, easy ingredients, there’s chocolate, more chocolate, chewy edges, a soft center, and three words: milk chocolate frosting. It’s a thick, soft-baked chocolate chip cookie the size of a cake. Are you convinced yet?

If you know me at all, you know I’m a fan of giant cookies. Let’s see… Giant Reese’s Pieces Cookie, Giant Oatmeal Creme Pie, XXL Death by Chocolate Cookie, Giant Snickerdoodle Cookie, Giant Peanut Butter Monster Cookie, and a Giant Sugar Cookie to finish it all off. Have you tried any of my giant cookie recipes yet?

Today’s cookie cake is much larger than any of my 2-serving giant cookie recipes. Rather, this thing is 9 inches in diameter and uses enough cookie dough to bake 24 cookies. So, I don’t suggest eating the entire cake…

Chocolate Chip Cookie Cake with Milk Chocolate Frosting - the best way to eat a chocolate chip cookie! Recipe on

To make today’s giant chocolate chip cookie cake, I combined two of my favorite chocolate chip cookie recipes. These (1) soft chocolate chip cookies and these (2) chewy chocolate chunk cookies.

I learned from recipe #1 that adding cornstarch to cookie dough will create exceptionally soft, thick baked cookies. Ever since then, I’ve always added cornstarch to my chocolate chip cookies. You all seem to love the addition of cornstarch in cookies – and I had to add it to the cake! This soft-baked cookie cake will melt in your mouth.

Additionally, I use all brown sugar in this cookie cake recipe. Something you don’t often find in chocolate chip cookies. You see, I often use a higher ratio of brown sugar to white sugar in my cookie recipes because brown sugar lends a softer textured cookie. Today, I skipped the white sugar altogether so that this cake would be ultra soft, moist, and have a light molasses flavor present. You’re going to love it!

I learned from recipe #2 that adding an extra egg yolk to cookie dough will give you chewy cookies. The chewiest of chewy, trust me. The extra egg yolk also adds tenderness and extra richness to the cake. Trust me, you’ll need a glass of milk. Or maybe even a big scoop of vanilla ice cream? Yes!

You’ll bake the chocolate chip cookie cake in a 9-inch cake pan or pie dish. Alternatively, you could use a 9-inch or 8-inch square baking pan. Since this giant cookie cake is baked in a pan, there’s no need to roll individual cookies. Skip the hassle, this cake is much easier! Oh and did I mention there’s no dough chilling? Yup, less time waiting around and more time eating.

Chocolate Chip Cookie Cake with Milk Chocolate Frosting - the best way to eat a chocolate chip cookie! Recipe on

Chocolate Chip Cookie Cake with Milk Chocolate Frosting - the best way to eat a chocolate chip cookie! Recipe on

The chocolate buttercream was a complete afterthought. It was Kevin’s idea. The same man who suggested peanut butter frosting on these and came up with this whole idea.

He’s definitely a keeper.

This is the perfect recipe when you’re looking for something a little different than a birthday cake and a little more exciting than a chocolate chip cookie. Soft and rich in the center, chewy on the edges, and studded with more chocolate chips than you know what to do with. (That’s a good thing.)

Chocolate Chip Cookie Cake with Milk Chocolate Frosting - the best way to eat a chocolate chip cookie! Recipe on

This cake is a win-win-win situation. Just make sure you have a glass of milk handy!

More chocolate chip cookies to love:

Chocolate Chip Cookie Cake


  • 3/4 cup (170g) unsalted butter, softened to room temperature
  • 1 cup (200g) packed light or dark brown sugar
  • 1 large egg + 1 egg yolk1
  • 2 teaspoons vanilla extract
  • 2 cups (250g) all-purpose flour (careful not to overmeasure)
  • 2 teaspoons cornstarch (aka cornflour)
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 and 1/2 cup (225g) semi-sweet chocolate chips
  • chocolate buttercream for topping (optional)


  1. Preheat oven to 350°F (177°C). Spray a 9-inch pie dish or cake pan with nonstick spray. Set aside.
  2. In a large bowl using a hand-held mixer or stand mixer fittedwith paddle attachment, beat the butter for 1 minute on medium speed until completely smooth and creamy. Add the brown sugar and beat on medium speed until creamy, about 1 minute. Mix in egg, egg yolk, and vanilla on medium-high speed until combined. Scrape down the sides and bottom of the bowl as needed.
  3. In a separate bowl, combine flour, cornstarch, baking soda and salt. On low speed, slowly mix into the wet ingredients until combined. The cookie dough will be quite thick. Add 1 and 1/4 cups chocolate chips and mix for about 5 seconds until evenly disbursed.
  4. Press the cookie dough evenly into the prepared pan. Bake for 20-25 minutes or until the cake is lightly golden brown (could be up to 30 minutes, depending on your oven). Use a toothpick to test for doneness. You may want to cover the cake loosely with aluminum foil after 15 minutes to avoid heavy browning around the edges. Remove from the oven and set the pan on a wire rack to cool completely. Once cooled, use a sharp knife or metal spatula to loosen the sides of the cookie cake from the pan and transfer to a serving dish. (Or use can serve directly from the pan.)
  5. The chocolate buttercream is optional. Instead, decorate with whipped cream or top with vanilla ice cream.
  6. Decorate the cooled cookie cake with frosting and remaining 1/4 cup chocolate chips. Depending how much frosting you use, you may have some leftover. I used a Wilton 1M tip. Cookie cake remains fresh covered tightly at room temperature for up to 3 days.

Recipe Notes:

  1. I prefer room temperature eggs for my cookie cake. Room temperature eggs incorporate evenly into your cookie dough – guaranteeing a uniform texture in each bite of the cookie cake. Simply set out the eggs when you set out the butter to come to room temperature. If you forget to set out your eggs, no worries. Place them into a bowl of warm water for 5 minutes, then use.

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© Sally’s Baking Addiction. All images & content are copyright protected. Please do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words, or link back to this post for the recipe.

Try my Cookie Dough Lovers’ Ice Cream Pie next!

Chocolate Chip Cookie Dough Ice Cream Pie. Loaded with EXTRA cookie dough!

See more cookie recipes.

See more cakes/pie recipes.

The BEST Chocolate Chip Cookie Cake!


  1. Just made this for my boyfriend’s birthday! Added butterscotch chips too (he loves them lol!) It came out awesome, he’s alright ate three pieces & it’s not even 10 am! Thanks for a great recipe, will definitely make again.

  2. Great Recipe made for block party… Everyone loved it now everyone is asking for me to make it again

  3. My friend requested a cookie cake for her birthday and this recipe looks so good! She asked for pecans in hers. Would I have to alter the recipe in any way or can I just leave it as is and add the nuts?

    • No need to alter– just add the chopped pecans. For extra flavor, you can toast the pecans for 8 minutes in a 300F degree oven before adding to the cookie dough.

  4. This recipe is ON POINT! It turned out perfect. I love the frosting too. I’ve made frosting from scratch from another recipe and it was no where near as good as this. Made it for my sister’s birthday and she loved it. THANK YOU!!!

  5. I just made this for my teen grand  daughters BD and think ill try to make peanut butter icing. to pipe
     Any suggestions?Or should i stick to  just chocolate icing.?

  6. This was a cinch to make and that Milk Chocolate Frosting tastes like a “liquid Hershey’s Bar” —— gooooo good!  Thanks for sharing.

  7. Hello! I was hoping to make this cake for my boyfriends birthday but wanted to know if I could make the dough in advance and then bake the cookie cake the next day or if that would mess up the batter?

    Thanks the recipe! 

  8. Hi sally! I’m planning on baking these for a birthday, will it be soft and gooey if i bake it on day earlier? I’m giving it on a Monday and i’ll be making it on a sunday night 

  9. I don’t have any cornstarch. Can I omit it from the cookie cake?

  10. This was by far the absolute BEST cookie cake I have ever tasted….the description of how the cookie cake would turn out was right on target! Made it for my son’s 17th bday. Everyone loved it!!!! Will definitely make again.  Muchas gracious mi amiga!

  11. This looks delicious! If I want to make it in a 9×13 pan, should I double the recipe? Also, how long should I cook it (knowing that ovens vary). Thanks for posting this!

    • I would double it, yes. I’m unsure of the exact bake time; it will be a little longer. Use a toothpick to test for doneness. If it comes out clean, it’s done!

  12. Are there any other substitutions that could be used for the heavy cream to give it the same texture and creaminess as the heavy cream would? What about condensed milk?

  13. Two questions-  can I use salted butter  instead of unsalted butter?
     And  is there  a vanilla  icing recipe you  would   recommend with this with this cake?

    • The only difference in unsalted vs salted butter, is the sodium content. If you use salted butter, decrease the salt. As salt is already included in the butter. Hope that helps

  14. I will be baking this in CO and was wondering what I should change for high altitude?

  15. Wow!  This recipe is fantastic!  I made it to celebrate Chocolate Chip Cookie day.  Soft and gooey cookie with a creamy chocolate frosting.  Amazing!  Sally, I have loved all of your recipes that I’ve made!  Your blog is my go-to for recipes.  Thanks so much for sharing.  

  16. I currently have this in the oven and hoping for the best.  But compared to other recipes I am worried it won’t be sweet enough. All others I have came across also add granulated sugar, where this is only brown.  Can someone ease my worries? 

    • I made these two days ago and they were extremely sweet. Today is my bfs birthday and I made them again, but made sure to add the cornstarch and doubled the salt. I actually used kosher salt this time. I had to add 10 minutes baking time. I also made the frosting but used coconut oil in place of the butter. Yum!!

  17. Sally, 
    I wanted to tell you what an inspiration you have been to me these last few years for a few reasons.  First, I have been using this very recipe to make cookie cakes for students at my school when it is their birthday for the past two years.  I have personal connections with these students and many of them tell me it is the only birthday cake they get, which is hard for me to imagine.  I am proud to share this special day with them.  I could not have done it without your awesome recipe.  I also use the sugar cookie recipe, as well.  I let the students choose.  
    The second reason you have inspired me is through your avid running habits.  I always thought it would be awesome to be able to go out and run five miles then come home and bake treats.  I had the baking part down but needed to work on my running.  I can say now after months of hard work,  I have been able to increase my runs to five and six miles.  I recently ran an 8K for the fist time.  I have other reasons why I run, but reading your blog gave me something to shoot for as a goal. Thank you, Sally.  I wish you the best with your endeavors.

  18. Yes, it came out fine. They weren’t runny gooey but were still softer than expected. I put them in the fridge and they firmed up. 

  19. Going to make this for my son’s birthday tomorrow! I do not have paddle attachments for my mixer. I am an amateur Baker. Can I use regular mixers? If so do I need to change how I do it?

  20. Hi Sally! Can I use the giant round cookie pan for this recipe? Thanks. 

  21. If I want to bake this in a 15 1/2in round pan, would you double the recipe? 

  22. Could this recipe be doubled to make a 12″ cake?  Wondering how tricky it would be to ensure it bakes evenly. Thanks!!

  23. What would be the difference if I didn’t use cornstarch? 

  24. Oh Sally! This recipe is gooooooood!! I was looking on Pinterest for a cookie cake recipe for our family gender reveal party – and wow! – I picked the right one! It tastes just like the cakes I’ve spent $$$ at the mall in the past. Now to think of the next event where I just “have” to make it again 😉 

  25. I made this and it is DELICIOUS!!! I added maybe 1/4c flour because I found the dough was a little soupy. After it cooled I found it was falling apart and I couldn’t eat it in slices:( is this because I added the flour? 

  26. ive made this for two parties now and ive gotten so many compliments! so easy and so yummy!

  27. This looks so good! Can I substitute the cornstarch for anything? My husbands alergic to corn. 

  28. Just made this for my sons birthday since he doesn’t like cake. It was a hit!! He said he wants it for his next birthday too! 

  29. Hi,
    I just made this cookie cake in my 9″ pie pan. It came out almost 2 inches thick. I did have to cook it for 35 minutes also. I think I would maybe put in an 8×8 or similar pan next time. Haven’t tried it yet as it’s cooling.

  30. Can I use liquid cornstarch or does it have to be powder?

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