Easy and incredibly delicious, this mini chocolate chip cookie cake is the perfect way to celebrate a special occasion without spending hours in the kitchen and worrying about leftovers.

Why You’ll Love This Recipe
- Easy: No mixer, chilling, or portioning the dough needed. Simply pour everything into a pan and bake.
- Small-batch: This recipe is perfect for a small group. You can either make a 6-inch cake or about four 4-inch cakes.
- Egg yolk cookie: This recipe is great for quickly turning that leftover egg yolk into a delicious treat.
- Customizable: You can adjust the sweetness by using whatever chocolate you like. I will usually use a combination of chocolate chips and chopped chocolate pieces, both semi-sweet and milk. You can also use whatever topping you like. I like to pair it with a dark chocolate whipped cream to balance out the cookie sweetness. But feel free to make a buttercream if you prefer or leave out the topping altogether.

Ingredients
- Flour: To give structure to the cookie cake.
- Butter: For flavor, richness and tenderness. We’ll be using melted butter which yields a denser, chewier cookie than if you had creamed it with the sugar.
- Sugar: A combination of white granulated sugar and dark brown sugar. Using all white sugar yielded a cookie that dried out after a few hours. Using too much brown sugar on the other hand yielded an overly chewy cookie with a softer texture. I settled for using three times more white sugar than brown, which I felt was the sweet spot for crunchy edges with a slightly chewy interior. If you want the cookie to be even chewier, feel free to replace part of the white sugar with brown sugar.
- Baking soda: For browning and a little bit of rise.
- Salt: To balance out the sweetness and bring out all the flavors. I’m using more than most recipes call for in this recipe and I really find that it makes every bite delicious, even the one without enough chocolate chips!
- Egg yolk: Since we’re making a small batch, we don’t really need a whole egg. To avoid asking you to crack an egg and use only half of it, I thought using just the yolk (and saving the white for French meringues for example) would be more convenient and delicious. The egg yolk adds richness and flavor and yields a chewier cookie.
- Milk: To compensate for the loss of moisture since we’re not using any egg white (which contains more water than the yolk). Not enough moisture will yield a very gritty texture.
- Chocolate: Aka, the best part! Make sure to use a chocolate you really enjoy as it can make or break the cookie cake.

Step-by-Step Instructions
- Melt the butter then mix in the sugars.


- Pour the milk in.


- Then mix in the egg yolk before adding the flour, baking soda and salt.


- Just mix long enough to combine then fold in the chocolate until evenly dispersed.


- Pour into a greased springform pan and bake in a preheated oven.


Wait for it to cool down completely then decorate as desired. I used chocolate whipped cream as seen in the chocolate merveilleux (you’ll find step-by-step images if needed). Enjoy!
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