My Chocolate Chip Cookie Cake is far more flavorful than store-bought versions and a joy to bake. This one‑bowl chocolate chip cookie dough is pressed into a 9‑inch pan and baked until the edges are crisp and the center remains gooey. A smooth chocolate fudge frosting and festive sprinkles finish it off.

Why you’ll love this Chocolate Chip Cookie Cake:
- Party perfect – Everyone loves a cookie cake, especially when it’s topped with chocolate frosting. It’s a guaranteed crowd-pleaser.
- Easy to make – Pantry staples and a single bowl are all you need. The recipe comes together quickly and bakes in under 30 minutes.
- Customizable – Add mix-ins like M&M’s, toffee, or nuts and swap the frosting flavor to suit your taste.

Ingredient overview
The full ingredient amounts and step-by-step instructions are in the recipe card below.
- Butter – I use salted butter for flavor, but unsalted works if you prefer. Bring butter to room temperature for easy creaming.
- All-purpose flour – Spoon and level your flour for accurate measurement or use a scale to avoid a dry result.
- Eggs – Use large eggs at room temperature.
- Chocolate chips – Use chips, chunks, or chopped bars depending on the texture you prefer.
- Vanilla extract – Real vanilla gives the best flavor.
Substitutions & variations
- Dairy-free – Substitute dairy-free butter and dairy-free chocolate. Use stick-style vegan butter for best results.
- Nuts – Fold in 3/4 cup chopped walnuts or pecans if desired.
- Chocolate variations – Mix semi‑sweet and dark or milk and semi‑sweet for a different balance.
- Other mix-ins – Replace 1/2 cup of chips with toffee bits, butterscotch, or M&Ms.
- Speedy alternative – If you’re short on time, try cookie bars for a quicker bake and easier slicing.
How to make the Chocolate Chip Cookie Cake
Step 1: Make the cookie dough. In a large bowl, beat the softened butter until creamy. Add the brown and granulated sugars and beat until well combined, about 1–2 minutes. Add the egg, egg yolk, and vanilla, mixing until smooth. Stir in the dry ingredients and fold in the chocolate chips.


Step 2: Press dough into a pan. Line a 9‑inch springform or cake pan with parchment and lightly spray. Press the dough evenly into the pan and scatter extra chocolate chips on top.

Step 3: Bake. Bake at 350°F (175°C) for 23–26 minutes. The top should look set and matte rather than wet; edges will be golden and slightly crisp while the center remains soft. Let the cake cool in the pan on a wire rack for 20–30 minutes, then release the springform and cool completely before frosting.

Step 4: Make the frosting. Beat softened butter until creamy, then add powdered sugar and cocoa powder. Add vanilla, a pinch of salt, and 2–3 tablespoons of water (or milk) as needed to reach the desired consistency. Taste and adjust sweetness or cocoa level to your preference.

Step 5: Decorate. Pipe or spread the chocolate fudge frosting on the cooled cookie cake and finish with sprinkles.

Serving and storing
Serve slices immediately after frosting, or enjoy the cookie warm without frosting. Store leftovers in an airtight container at room temperature for 3–4 days. If your frosting contains milk, refrigerate and bring to room temperature before serving.
Expert baking tips
Oven thermometer – Use an oven thermometer to confirm your oven’s true temperature. Oven variability affects bake times and results.
Kitchen scale – Weighing flour gives the most consistent results; measuring by volume can vary widely.

FAQs
Yes. A 9‑inch cake pan works fine. You can also double the recipe and bake it in a 9×13 pan for a sheet-style cookie cake.
Make it a few hours ahead if needed, though it’s best when slightly gooey inside. Alternatively, press the dough into the prepared pan, cover, and refrigerate overnight before baking; baking time may increase slightly.
Yes. Once fully cooled, wrap tightly in foil and place in a freezer bag for 4–6 weeks. Thaw at room temperature before frosting. Individual slices can also be frozen.

Special tools
- Springform pan – A 9‑inch springform pan is recommended for easy removal, though a standard 9‑inch cake pan works as well.
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Chocolate Chip Cookie Cake
Ingredients
For the cookie cake
- 3/4 cup (170 g) salted butter, softened
- 1/2 cup + 2 tbsp packed dark brown sugar
- 1/2 cup granulated sugar
- 1 large egg, room temperature
- 1 large egg yolk, room temperature
- 2 tsp vanilla extract
- 2 1/4 cups all-purpose flour
- 3/4 tsp baking powder
- 3/4 tsp baking soda
- 3/8 tsp salt
- 1 1/2 cups chocolate chips
For the frosting
- 1/2 cup salted butter, room temperature
- 2 cups powdered sugar, plus more to taste
- 1/3 cup cocoa powder
- 2–3 tbsp water (or milk)
- 1 tsp vanilla extract
- Pinch of salt
- Sprinkles, for decorating
Instructions
- Prep: Line a 9‑inch springform pan with parchment and spray with nonstick spray. Preheat oven to 350°F (175°C).
- Make the dough: Cream butter, then add both sugars and beat 1–2 minutes. Add the egg, yolk, and vanilla and mix until combined. Stir in flour, baking powder, baking soda, and salt, then fold in chocolate chips.
- Bake: Spread dough in the prepared pan, top with extra chips, and bake 23–26 minutes. The center should be just set and the top matte. Let cool in the pan on a rack for 20–30 minutes, then release the sides and cool completely before frosting.
- Make the frosting: Beat butter until creamy. Add powdered sugar and cocoa, using water and vanilla to reach the right consistency. Add a pinch of salt and adjust sweetness to taste. Pipe or spread on the cooled cake and add sprinkles.
- Serve and store: Slice and serve immediately. Store leftovers in an airtight container at room temperature for 3–4 days; refrigerate if frosting contains milk.
Nutrition
Nutrition information is an estimate and should be used as a guide.