This chocolate chip cookie cake is one big soft cookie baked in a round pan, then covered with fudgy chocolate frosting and colorful sprinkles.
The dough comes together in two bowls with no chilling, and the frosting takes only a few minutes with a mixer. Slice it into wedges like a cake for birthdays, bake sales, or a simple weeknight dessert.
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Why This Chocolate Chip Cookie Cake Recipe Works
Baking the dough in a single pan gives a cookie with crisp golden edges and a soft, slightly gooey center that slices like cake.
Equal parts white and brown sugar balance chewiness and crisp edges, and chocolate chips stay melty right through the center.
The frosting uses butter, cocoa, powdered sugar, and a splash of milk, so it spreads smoothly and sets with a soft, fudgy bite.
Ingredients for Chocolate Chip Cookie Cake
- 3/4 cup unsalted butter, softened
- 1/2 cup granulated sugar
- 1/2 cup brown sugar
- 2 large eggs
- 1 1/2 tsp pure vanilla extract
- 2 1/2 cups all purpose flour
- 1 tsp baking soda
- 1/2 tsp salt
- 1 1/4 cups chocolate chips
- 1/4 cup unsalted butter, softened, for the frosting
- 2 cups powdered sugar, divided
- 1/3 cup unsweetened cocoa powder
- 1 tsp pure vanilla extract, for the frosting
- 2 tbsp milk
- colored sprinkles, optional
Butter. Softened butter should leave a small dent when pressed but not look greasy. It creams into the sugars for a tender crumb.
Two sugars. Granulated sugar crisps the edges while brown sugar adds moisture and a hint of caramel.
Chocolate chips. Semisweet chips hold their shape ideal, while milk chocolate chips make a sweeter cookie.
Cocoa powder. Unsweetened cocoa gives the frosting a deep chocolate flavor that balances the sweet cookie.
Powdered sugar. Add it in two rounds so the frosting stays smooth and does not puff out of the bowl.
How to Make Chocolate Chip Cookie Cake
1. Heat the oven Heat the oven to 350 degrees F and grease a 9 inch round cake pan.
2. Cream the base Beat the softened butter with the granulated sugar and brown sugar until light and fluffy.
3. Add the eggs Beat in the eggs and vanilla until the mixture is smooth.
4. Mix the dry ingredients In another bowl, whisk the flour, baking soda, and salt together.
5. Combine Add the dry mixture gradually and mix until just combined, then fold in the chocolate chips.
6. Fill the pan Press the dough into the greased pan in an even layer.
7. Bake and cool Bake for 20 to 25 minutes, until the edges are golden and the center is set. Cool completely in the pan.
8. Make the frosting Beat the second batch of butter until creamy, then add 1 cup of powdered sugar, the cocoa, vanilla, and milk. Mix until smooth, add the remaining sugar, and beat until fluffy.
9. Decorate Spread the frosting over the cooled cookie and top with sprinkles.
How to Serve Chocolate Chip Cookie Cake
Cut the cookie cake into wedges and serve it on plates with a scoop of ice cream. For a birthday table, add a slice of homemade strawberry cake or lemon layer cake for variety. A drizzle of silky chocolate ganache works over a warm wedge, and a dish of vanilla bean creme brulee gives guests a softer option.
How to Store and Reheat Chocolate Chip Cookie Cake
Store the frosted cookie cake in an airtight container at room temperature for up to 2 days, or in the refrigerator for up to 4 days. Let refrigerated wedges sit for 20 minutes before eating so the cookie softens. To freeze, wrap unfrosted slices tightly for up to 3 months and frost after thawing.
Tips and Variations for Chocolate Chip Cookie Cake
Cool it completely. A warm cookie melts the frosting into a puddle. Wait until the pan feels cool to the touch.
Line the pan. A circle of parchment on the bottom helps the cookie slide out whole if you want to frost it on a plate.
Do not overbake. Pull it when the edges are golden and the middle is just set. It keeps cooking from the heat of the pan.
Check for doneness. A toothpick in the center should show only a few moist crumbs, not wet batter.
Change the chips. Milk chocolate, white chocolate, or peanut butter chips all work in place of the chocolate chips.
Decorate. Pipe borders or write a message with leftover frosting for birthdays.
Add toppings. Extra chips or colored sprinkles on top add color and crunch.
Food safety. For more on safe handling of eggs and baked goods, review this Montana State University Extension egg fact sheet.
Frequently Asked Questions About Chocolate Chip Cookie Cake
What size pan works for a chocolate chip cookie cake?
A 9 inch round cake pan works well. A 10 inch pan gives a thinner cookie that bakes a few minutes faster.
Can I make a chocolate chip cookie cake ahead of time?
Yes. Bake and cool the cookie a day ahead, wrap it well, and frost it shortly before serving.
Why is my chocolate chip cookie cake dry?
It was probably overbaked or the flour was packed into the cup. Pull it from the oven when the center looks just set and spoon the flour into the measuring cup.
Do I have to use cocoa in the frosting?
No. Leave out the cocoa for a vanilla buttercream, and add a splash more milk if it looks stiff.
Can I use a springform pan?
Yes. Grease it well, bake as directed, and release the ring after the cookie cools.
Chocolate Chip Cookie Cake with Chocolate Frosting and Sprinkles
Equipment
- 9-inch round cake pan
- Mixing bowls
- Hand mixer
- Rubber spatula
- Cooling rack
Ingredients
Main Ingredients
- ¾ cup unsalted butter softened
- ½ cup granulated sugar
- ½ cup brown sugar
- 2 large eggs
- 1 ½ tsp pure vanilla extract
- 2 ½ cup all purpose flour
- 1 tsp baking soda
- ½ tsp salt
- 1 ¼ cup chocolate chips
- ¼ cup unsalted butter softened, for the frosting
- 2 cup powdered sugar divided, 1 cup then 1 cup
- ⅓ cup unsweetened cocoa powder
- 1 tsp pure vanilla extract for the frosting
- 2 tbsp milk
- 2 tbsp colored sprinkles optional
Instructions
Cooking
- Heat and grease. Heat the oven to 350 degrees F and grease a 9 inch round cake pan.
- Make the dough. Cream the butter and both sugars, beat in the eggs and vanilla, mix in the whisked flour, baking soda, and salt, then fold in the chocolate chips.
- Bake. Press the dough into the pan and bake for 20 to 25 minutes until the edges are golden and the center is set, then cool completely.
- Frost. Beat the butter, 1 cup of powdered sugar, cocoa, vanilla, and milk until smooth, add the remaining sugar, and beat until fluffy.
- Decorate. Spread the frosting over the cooled cookie and top with sprinkles.
