Unlike most of my cake recipes, this isn’t a soft and fluffy slice of heaven. Instead, my cookie cake is quite literally a big, thick, soft-baked chocolate chip cookie, complete with chocolate buttercream. The center is chewy, buttery, and studded with chocolate chips. It’s all the best things we love about cookies, but impressive enough to be the main attraction at a party!

Why You’ll Love This Recipe

Perfect for people who don’t enjoy classic cakes. And with plenty of sprinkles, no one will miss the traditional birthday cake! No chilling, scooping, or rolling! Simply make the dough and spread it into your pan. It’s just as easy as my chocolate chip cooke bars! Each slice has a soft, chewy, center with a slightly crisped edge. Everyone gets the best parts!

Ingredient Overview

This recipe isn’t too different from your average chocolate chip cookie recipe, so the ingredients are pretty similar.

Egg + egg yolk. Instead of two whole eggs, I use one egg and and one egg yolk. Discarding that extra egg white means our cookie cake won’t be cakey, but will instead be perfectly tender and chewy. If you don’t want to toss your egg white, save it to make some candied walnuts. Cornstarch. This encourages a thick, soft, and tender chocolate chip cookie cake. Cornstarch is one of my favorite “secret” ingredients in cookies (you’ve probably seen it before in my “worst” chocolate chip cookies and Neapolitan cookies), a little bit helps make for a perfectly soft result. Cocoa powder. This ingredient is for the frosting rather than the cake layer itself. I typically stick with natural cocoa powder. Dutch process will work too, but the color will be darker and the flavor will be deeper. Chocolate chips. I always prefer semisweet chips (they lend a nice balance to things) but if you like milk chocolate, dark chocolate, or even white chocolate, any of these will work! Sprinkles. Have fun with these! Feel free to use holiday sprinkles (red, white, and blue would be cute for July 4th!) or your own blend. I stir them into the batter and save a few to sprinkle on top of the frosting, too.

Make the Frosting & Decorate

SAM’S TIP: As hard as it is to wait, you must let the cake cool completely before adding your frosting. If it’s still warm, the frosting will just melt. Are you a cookie person or a cake person? At this point, I feel like it’s just getting to be too hard for me to choose. Enjoy! Let’s bake together! Subscribe to my newsletter to be notified of all the newest recipes, and find my free recipe tutorials on YouTube 💜 This recipe was originally published September of 2017. I’ve updated the post with new photos and a new video and added more helpful tips to the post, but the recipe remains the same!

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