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If you have a soft spot for cookies and cake that will bring out your inner child’s biggest smile, this Cookie Monster Cake Recipe is a total game-changer. Imagine biting into layers of rich triple chocolate cake with a silky blue frosting that’s studded with crushed Oreos and topped with mini cookies – it’s like Cookie Monster’s dream come true, but better because it’s real and ready to devour. This cake combines playful fun with decadent flavors, making it the ultimate showstopper at any gathering or celebration.

Ingredients You’ll Need
Getting the ingredients right is key to mastering this cake, and luckily the list isn’t complicated. Each ingredient plays a special role, whether it’s bringing moistness, structure, or that vibrant character that makes the Cookie Monster Cake Recipe so unforgettable.
- 2 boxes triple chocolate cake mix: The foundation of rich, fudgy and moist cake layers full of chocolate goodness.
- 2 1/2 cups whole milk: Essential for moisture and ensuring the cake batter is smooth and creamy.
- 2 cups unsalted butter (softened): Adds that velvety richness both in the cake and frosting for perfect texture.
- 6 large eggs: Helps bind the cake ingredients together while making it fluffy and tender.
- 4 cups powdered sugar: Sweetness with that melt-in-your-mouth smoothness for the frosting.
- 1 cup crushed Oreo cookies: Adds crunchy Oreo bits directly into the frosting, infusing every bite with cookie flavor.
- 3 teaspoons pure vanilla extract: Lifts and brightens the chocolate flavors with a warm, comforting aroma.
- 5-7 tablespoons heavy whipping cream: Provides the perfect frosting consistency—rich but spreadable.
- 3-6 drops sky blue gel food coloring: Brings the iconic bright blue color that’s as fun to look at as it is to eat.
- 1 package mini chocolate chip cookies: Fun little cookies for decorating and extra bursts of chocolaty crunch.
- 1 package mini Oreo cookies: Mini Oreos add the whimsical touch and enhance the cookie theme.
- 1 package regular size Oreos: For layering, decorating, and crushing to sprinkle on top.
- 1 cup unsalted butter (softened): For the cookie crumble topping to add buttery crispness.
- 3/4 cup light brown sugar: Gives the cookie topping a deep, caramelized sweetness.
- 1 cup powdered sugar: Sweetens the topping and balances textures.
- 1 cup flour: Provides structure to the cookie crumble topping.
- 1/2 teaspoon kosher salt: Enhances all the sweetness and chocolate notes.
- 1/4 cup whole milk: Keeps the topping tender and moist.
- 1 cup mini chocolate chips: Adds bursts of melted chocolate pockets in the crumble topping.
- 1 cup semi-sweet chocolate chips: Provides a slightly richer chocolate hit in the topping.
- 1/3 cup heavy whipping cream: Used in the drizzle to finish the cake gorgeously.
How to Make Cookie Monster Cake Recipe
Step 1: Prepare the Cake Batter
Start by mixing the two boxes of triple chocolate cake mix with whole milk, softened butter, and eggs. The batter should be smooth and slightly thick, packed with chocolate goodness. This sets the stage for layers that are moist and decadently dense, a chocolate lover’s perfect canvas.
Step 2: Bake the Cake Layers
Pour the batter evenly into greased cake pans and bake for around 29 minutes at the recommended temperature. When done, the cakes will spring back lightly to the touch and emit the intoxicating scent of chocolate. Let them cool completely before moving to frosting, or you’ll melt your hard-earned frosting in a flash.
Step 3: Make the Blue Oreo Frosting
Whip together softened butter, powdered sugar, crushed Oreos, vanilla extract, and a splash of heavy cream. Add sky blue gel food coloring little by little until you get that iconic Cookie Monster blue. The texture should be fluffy yet creamy, perfect for thick layers. Those Oreo bits scattered inside add delightful crunch and bursts of cookie flavor.
Step 4: Assemble the Cake
Place the first cake layer on your platter and generously spread a thick layer of blue Oreo frosting. Add the second cake layer on top and cover the entire cake with the remaining frosting, making it a sky-blue masterpiece ready to steal the spotlight.
Step 5: Prepare the Cookie Crumble Topping
Mix softened butter with light brown sugar, powdered sugar, flour, kosher salt, and milk. Fold in both kinds of chocolate chips. Spread this mixture on a baking sheet and bake until golden and crispy. Once cooled, crumble it over the top of your frosted cake for that irresistible crunch and cookie aroma. This crumbly topping really takes the Cookie Monster Cake Recipe to the next level.
Step 6: Decorate with Mini and Regular Oreos
Finish by artfully placing mini chocolate chip cookies, mini Oreos, and whole Oreos all over the cake. For a grand finale, drizzle some warmed heavy cream combined with melted chocolate chips over the top for a glossy finish that looks almost too good to eat.
How to Serve Cookie Monster Cake Recipe

Garnishes
The key to serving your Cookie Monster Cake Recipe is presentation that’s as fun as it is delicious. Garnish with extra crushed Oreos, mini cookies, and a dusting of powdered sugar for a snowy effect. Adding colorful sprinkles shaped like cookies or little edible googly eyes can send the theme over the top and bring smiles all around.
Side Dishes
This cake shines as a standalone showstopper but pairs wonderfully with simple vanilla whipped cream or a scoop of classic vanilla ice cream. A tall glass of cold milk or a warm cup of coffee also balances the sweetness beautifully and rounds out the dessert experience.
Creative Ways to Present
Try serving individual slices with a mini cookie on top or impress guests by turning the cake into a layered Cookie Monster-inspired dessert trifle. Stack cut cake cubes with alternating layers of the blue Oreo frosting and cookie crumble in clear glasses to showcase all those gorgeous textures and colors.
Make Ahead and Storage
Storing Leftovers
Leftover Cookie Monster Cake Recipe will keep well covered at room temperature for a day or two, but for best freshness, store it tightly wrapped in the refrigerator. The blue frosting might firm up, but this only means each slice holds its shape beautifully when served later.
Freezing
If you want to save the magic for later, freeze the cake in airtight containers or wrap it tightly in plastic wrap and foil. Thaw it overnight in the fridge to avoid condensation watering down that wonderful frosting. This way, you can enjoy the Cookie Monster Cake Recipe whenever craving strikes.
Reheating
This cake is best enjoyed chilled or at room temperature, so reheating isn’t necessary. But if you like your cake a little warmer, let it sit out for 30 minutes or gently warm a slice in the microwave for 10-15 seconds to soften buttery frosting and bring out chocolate nuances.
FAQs
Can I make the blue frosting without food coloring?
You can, but the iconic Cookie Monster Cake Recipe wouldn’t be the same without that brilliant blue hue. If you prefer to skip artificial colors, consider natural blue colorants like spirulina or butterfly pea powder, but the shade will be subtler.
What alternatives can I use for the triple chocolate cake mix?
If triple chocolate mix is hard to find, any chocolate cake mix will do well. You can also bake a homemade chocolate cake from scratch to personalize sweetness and richness, but using the mix keeps this recipe fast and easy.
How do I crush Oreos without making a powder?
Place Oreos in a zip-top bag and gently tap with a rolling pin or use your hands to break them into chunks. The goal is a mix of small bits and some larger chunks for texture, rather than a fine powder.
Can I use regular food coloring instead of gel?
Gel food coloring is recommended since it provides bright color without thinning the frosting. Regular liquid coloring can dilute the texture, so if you only have liquid, add just a drop at a time to avoid a runny frosting.
Is it possible to make this cake dairy-free?
Yes, but you’ll need to swap out the butter for dairy-free margarine or coconut oil, use a non-dairy milk, and find dairy-free chocolate chips and cookies. Remember the texture and flavor might shift slightly, but it can still be delightful!
Final Thoughts
If you’re ready for a dessert that’s as joyful to make as it is to eat, the Cookie Monster Cake Recipe is waiting to become your new favorite. It’s a fun, indulgent twist on chocolate cake combined with the timeless charm of cookies, guaranteed to create smiles and satisfy cookie cravings like no other. Get baking, and let your inner Cookie Monster roar in delight!
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Print
Cookie Monster Cake Recipe
- Prep Time: 30 minutes
- Cook Time: 29 minutes
- Total Time: 59 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This indulgent Cookie Monster Cake is a delight for chocolate lovers and cookie enthusiasts alike. Featuring rich triple chocolate cake layers infused with creamy blue frosting, crushed Oreo cookies, and an assortment of mini chocolate chip and Oreo cookies for decoration, this cake is perfect for celebrations or any occasion that calls for a show-stopping dessert.
Ingredients
Chocolate Cake
- 2 boxes triple chocolate cake mix
- 2 1/2 cups whole milk
- 6 large eggs
- 2 cups unsalted butter, softened
Blue Frosting
- 2 cups unsalted butter, softened
- 4 cups powdered sugar
- 3 tsp pure vanilla extract
- 5–7 tbsp heavy whipping cream
- 3–6 drops sky blue gel food coloring
- 1 cup crushed Oreo cookies
Cookie Crumble Topping
- 1 cup unsalted butter, softened
- 3/4 cup light brown sugar
- 1 cup powdered sugar
- 1 cup flour
- 1/2 tsp kosher salt
- 1/4 cup whole milk
- 1 cup mini chocolate chips
- 1 cup semi-sweet chocolate chips
- 1/3 cup heavy whipping cream
Decorations
- 1 package mini chocolate chip cookies
- 1 package mini Oreo cookies
- 1 package regular size Oreos
Instructions
- Prepare the Chocolate Cake Batter: In a large mixing bowl, combine the two boxes of triple chocolate cake mix, 2 1/2 cups of whole milk, 6 large eggs, and 2 cups of softened unsalted butter. Beat the mixture thoroughly until smooth and well combined. This batter will form the base of your decadent cake layers.
- Bake the Cake Layers: Preheat your oven as directed on the cake mix boxes. Pour the batter evenly into prepared cake pans lined with parchment paper or greased. Bake for approximately 29 minutes, or until a toothpick inserted into the center comes out clean. Allow the cake layers to cool completely before assembling.
- Make the Blue Frosting: Using a hand or stand mixer, beat together 2 cups of softened unsalted butter and 4 cups of powdered sugar until fluffy. Add 3 teaspoons of pure vanilla extract, 5-7 tablespoons of heavy whipping cream, and 3-6 drops of sky blue gel food coloring. Continue to beat until smooth and creamy. Fold in 1 cup of crushed Oreo cookies to incorporate a subtle chocolate cookie flavor and texture into the frosting.
- Prepare the Cookie Crumble Topping: In a separate bowl, combine 1 cup softened unsalted butter, 3/4 cup light brown sugar, 1 cup powdered sugar, 1 cup flour, and 1/2 teaspoon kosher salt. Mix until crumbly. Stir in 1/4 cup whole milk, 1 cup mini chocolate chips, 1 cup semi-sweet chocolate chips, and 1/3 cup heavy whipping cream. This topping adds a sweet, crunchy texture to your cake decoration.
- Assemble the Cake: Place one cake layer on your serving plate. Spread a generous amount of blue frosting over the top. Repeat layering with remaining cake layers and frosting, finishing with a smooth coat of frosting over the whole cake. Sprinkle the cookie crumble topping evenly over the cake’s surface.
- Decorate with Cookies: Arrange mini chocolate chip cookies, mini Oreo cookies, and regular-sized Oreos artfully on top and around the sides of the cake. This not only enhances the visual appeal but adds delightful bursts of cookie crunchiness in every bite. Chill the cake for at least 1 hour before serving to set the frosting and toppings.
Notes
- Use room temperature ingredients for better mixing results.
- You may adjust the amount of blue food coloring to achieve your desired frosting color intensity.
- For best flavor, let the cake rest overnight in the fridge before serving.
- Ensure the cake layers are completely cool to avoid melting the frosting.
- Store leftover cake covered in the refrigerator for up to 4 days.

