Boo-tterscotch M&M Chocolate Chip Cookie Cake: Your Ultimate Fall & Halloween Dessert
Step into the cozy flavors of autumn with this extraordinary Boo-tterscotch M&M Chocolate Chip Cookie Cake! Imagine a giant, chewy cookie, baked to golden perfection, generously studded with incredibly creamy white chocolate Boo-tterscotch M&M candies. Each bite delivers a powerful punch of intense butterscotch flavor that is simply irresistible. This cookie cake is not just “good” – it’s “scary” good, making it the ideal centerpiece for all your fall gatherings, Halloween parties, or simply a delightful treat for any day you crave something special.
If you’re looking to elevate your seasonal dessert game, this Boo-tterscotch M&M Cookie Cake offers a unique twist on a classic favorite. It combines the comforting texture of a chocolate chip cookie with the rich, distinctive taste of butterscotch in a fun, festive format. Forget individual cookies; this cake is designed for sharing (or enjoying all to yourself, we won’t tell!).
Craving more party fun? You bet! Explore these delectable treats: 20 Spooktacular Halloween Desserts, 10 Halloween Party Desserts, and for year-round cookie inspiration, check out these National Chocolate Chip Day Cookie Recipes!

Discovering Boo-tterscotch M&M’s: A Seasonal Sensation
Have you encountered the delightful Boo-tterscotch M&M’s yet? Or perhaps you know them simply as Butterscotch M&M’s, with the “Boo” prefix playfully added for the enchanting Fall and Halloween season. These limited-edition candies are a true game-changer for any dessert enthusiast.
These M&M’s are quite spectacular and, dare we say, arguably superior to traditional butterscotch chips. Their unique composition of creamy white chocolate coated in a vibrant, intensely flavored butterscotch shell makes them wonderfully delicious. They bring an unparalleled depth of flavor and a delightful texture to this Fall-inspired Boo-tterscotch M&M Chocolate Chip Cookie Cake – a creation so good, you simply shouldn’t live without it!
Each candy is a small, vibrant morsel of creamy white chocolate infused with rich butterscotch, then encased in a crisp candy shell. The combination delivers a powerful, authentic butterscotch flavor that is both comforting and exciting. It’s truly “scary” good!
Finding these seasonal gems can be part of the fun! I typically snagged mine at local big-box retailers like Target or Walmart when they were released. Due to their limited seasonal availability, they can sometimes be ordered online through platforms like Amazon, though availability can vary. Keep an eye out in the fall months to stock up on this seasonal favorite.
M&M’s has a fantastic track record of introducing exciting seasonal flavors. In previous years, we’ve seen scrumptious Autumn Pecan Pie M&M Blondies crafted with Pecan Pie M&M’s, and even further back, delightful Candy Corn Double Chocolate Cookies featuring the highly addictive Candy Corn M&M’s. These limited-time releases add a special flair to holiday baking, and the Boo-tterscotch M&M’s are no exception. Please note that as these are seasonal items, specific product links may change or expire.
If you’re an absolute M&M’s enthusiast, you absolutely must dive into some other incredible recipes: 23 Ways M&M’s Will Melt Your Heart {and Not Melt In Your Hands}, M&M Cookie Bars, M&M Marshmallow Bars, and these wonderfully Thick & Chewy Chocolate M&M Cookies! Each recipe showcases the versatility and joy these colorful candies bring to baked goods.

Why a Cookie Cake is the Perfect Fall Dessert
While traditional cookies are always a delight, a cookie cake offers several advantages, especially for gatherings. It’s significantly easier to prepare and serve than baking dozens of individual cookies, making it a fantastic choice for busy hosts. This large-format dessert bakes into a singular, impressive treat that’s easy to slice and share. The beauty of a cookie cake lies in its texture: a perfectly chewy center with slightly crisp edges, offering a delightful contrast in every bite. It’s a wonderful alternative to a traditional cake, providing that comforting, home-baked feel without the fuss of multiple layers or intricate decorating. Plus, the festive sprinkles and rich chocolate fudge frosting make it a visual treat that perfectly complements the vibrant colors of autumn and Halloween.
Ingredients for Boo-tterscotch M&M Chocolate Chip Cookie Cake
Crafting this sensational cookie cake requires a blend of pantry staples and our star ingredient, the Boo-tterscotch M&M’s. Each component plays a crucial role in achieving the perfect texture and flavor profile for this festive dessert.
COOKIE CAKE
- All-Purpose Flour: The foundation of our chewy cookie cake.
- Cornstarch: A secret ingredient that contributes to an incredibly soft and tender texture, preventing the cookie cake from becoming too dry or crumbly.
- Baking Soda: Essential for leavening, helping the cookie cake rise slightly and achieve its signature chewy consistency.
- Salt: A crucial flavor enhancer that balances the sweetness and brings out the rich notes of chocolate and butterscotch.
- Unsalted Butter, melted: Provides richness and moisture. Melting it creates a chewier cookie texture.
- Brown Sugar (light or dark): Contributes to moisture and a deep, caramel-like flavor, enhancing the butterscotch notes. Dark brown sugar will give a richer, molasses flavor.
- Granulated Sugar: Adds sweetness and helps with browning and crisp edges.
- Eggs (whole egg + egg yolk): The whole egg binds the ingredients, while the extra egg yolk adds richness, chewiness, and moisture, making the cookie cake extra decadent.
- Vanilla Extract: A classic flavor enhancer that complements both chocolate and butterscotch beautifully.
- Semi-Sweet Chocolate Chips: The timeless partner to M&M’s, offering a comforting chocolatey balance to the butterscotch.
- Boo-tterscotch M&M’s: The star of the show! These seasonal candies deliver a vibrant burst of butterscotch flavor.
CHOCOLATE FUDGE FROSTING
- Unsweetened Baking Chocolate: Forms the deep, rich chocolate base of the fudge frosting.
- Unsalted Butter: Adds creaminess and richness to the frosting.
- Vanilla Extract: Enhances the chocolate flavor in the frosting.
- Milk or Cream: Used to achieve the desired consistency for a smooth, spreadable frosting.
- Powdered Sugar: The primary sweetener and thickener for the frosting, ensuring a smooth, lump-free texture.
- Pinch of Salt: Just like in the cookie cake, salt in the frosting brings out the chocolate flavors and balances the sweetness.

How to Make Boo-tterscotch M&M Chocolate Chip Cookie Cake: Step-by-Step Guide
Creating this festive cookie cake is straightforward and rewarding. Follow these steps for a perfectly chewy and delicious dessert that will impress everyone.
CHOCOLATE CHIP COOKIE CAKE
- Prepare Your Pan: Preheat your oven to 350ºF (175ºC). Lightly spray a 9-inch springform pan with a non-stick cooking spray. This ensures easy release after baking. Set the prepared pan aside.
- Combine Dry Ingredients: In a large mixing bowl, whisk together the all-purpose flour, cornstarch, baking soda, and salt. Whisking ensures these ingredients are evenly distributed, leading to a consistent cookie texture. Set this dry mixture aside.
- Mix Wet Ingredients (Sugars & Butter): In a separate medium-sized bowl, whisk together the melted unsalted butter, brown sugar (light or dark), and granulated sugar until the mixture is smooth and well combined. This combination of sugars helps create that signature chewy texture.
- Add Eggs & Vanilla: Into the butter and sugar mixture, whisk in the large egg, the extra egg yolk, and the vanilla extract until everything is completely combined and slightly creamy. The extra egg yolk adds richness and chewiness.
- Combine Wet and Dry: Pour the wet ingredients mixture into the bowl with your dry ingredients. Stir gently using a spoon or spatula until no streaks of flour remain and a cohesive cookie dough forms. Be careful not to overmix, as this can lead to a tough cookie cake.
- Fold in Candies: Gently fold in the semi-sweet chocolate chips and the star Boo-tterscotch M&M’s. Once mixed, press the cookie dough evenly into your prepared springform pan. Ensure it’s spread to the edges for even baking.
- Bake: Bake the cookie cake in the preheated oven for 23-25 minutes. You’ll know it’s ready when the edges begin to turn golden brown and the center appears set but still slightly soft. Remember, a slightly underbaked center yields a chewier cookie cake!
- Cool: Remove the cookie cake from the oven and place it on a wire rack to cool completely. This step is crucial before attempting to frost or decorate, as warm frosting will melt and slide off.
CHOCOLATE FUDGE FROSTING
You can opt for convenience with a tub of store-bought chocolate fudge frosting, or elevate your cookie cake with a homemade batch. Here’s how to make a luscious homemade chocolate fudge frosting:
- Melt Chocolate & Butter: In a small saucepan, combine the unsweetened baking chocolate (coarsely chopped) and unsalted butter. Melt over medium heat, stirring continuously until smooth. Once melted, remove from heat and allow to cool for about 15 minutes. This prevents the powdered sugar from clumping and ensures a smooth frosting.
- Combine with Other Wet Ingredients: In a mixing bowl, combine the cooled chocolate/butter mixture, vanilla extract, and 3 tablespoons of milk or cream.
- Add Powdered Sugar: With your mixer on low speed, slowly add the powdered sugar, one cup at a time, until mostly incorporated.
- Beat to Perfection: Increase the mixer speed to medium and beat until the frosting is completely combined, smooth, and fluffy. Scrape down the sides of the bowl as needed to ensure all ingredients are incorporated. Add the pinch of salt to taste, and if the frosting is too thick, add the remaining tablespoon of milk or cream, one teaspoon at a time, until it reaches your desired consistency.
- Decorate: Once the cookie cake is completely cooled, carefully remove it from the springform pan and place it on your desired serving platter. Transfer the homemade chocolate fudge frosting to a piping bag (or use an offset spatula) and decoratively swirl it over the cookie cake.
- Add Sprinkles (Optional): If you’re using festive sprinkles, add them immediately after frosting, before the frosting has a chance to set. This ensures they adhere beautifully.
- Storage: The decorated cookie cake remains fresh when covered tightly at room temperature for up to 4 days.
- Freezing: An undecorated cookie cake can be frozen for up to 2 months. To enjoy later, thaw it overnight in the refrigerator and allow it to come to room temperature before frosting and decorating.
Special Notes When Baking Cookie Cake: Pro Tips for Perfection
Achieving the perfect Boo-tterscotch M&M Cookie Cake is simple with a few expert tips. These small adjustments can make a big difference in the final product, ensuring your cookie cake is moist, chewy, and utterly delicious.
- Prevent Browning: If you prefer a lighter golden top or notice the edges browning too quickly, you may gently cover the cake with aluminum foil during the last few minutes of baking. This helps to prevent over-browning while allowing the center to finish cooking.
- Don’t Overbake: This is arguably the most crucial tip! Overbaking is the enemy of a chewy cookie cake. Keep a close eye on your oven and remove the cake when the edges are set and lightly golden, but the center still looks slightly soft or even a little underdone. It will continue to cook and set as it cools on the wire rack, resulting in a wonderfully moist and delightfully chewy texture. A minute or two can make all the difference, so err on the side of slightly underbaked for maximum chewiness.
- Room Temperature Ingredients (mostly): While the butter is melted for this recipe, ensure your egg and egg yolk are at room temperature. Room temperature eggs emulsify better with other ingredients, creating a smoother batter and a more uniform texture in your finished cookie cake.
- Quality Ingredients: Using good quality chocolate chips and a fresh batch of Boo-tterscotch M&M’s will elevate the flavor significantly. Fresh vanilla extract also makes a noticeable difference.

Serving Suggestions and Perfect Pairings
Who wouldn’t want this incredible Boo-tterscotch M&M Cookie Cake for a party, a birthday celebration, or as most of us prefer—any time the craving strikes? Do we truly need an excuse for a butterscotch cookie cake loaded with M&M’s? This dessert is not only easy to make, baking in just 23 to 25 minutes, but it’s also incredibly versatile in how you can present it.
Once cooled, the possibilities for decoration are endless. A generous swirl of rich chocolate fudge frosting, as outlined in our recipe, adds a decadent touch and beautiful contrast to the butterscotch M&M’s. For extra festivity, consider adding Halloween-themed sprinkles or colorful confetti to match your occasion. Serve it warm with a scoop of vanilla bean ice cream for an ultimate comfort food experience, allowing the ice cream to gently melt into the soft, warm cookie. A drizzle of extra butterscotch sauce or caramel could also elevate the indulgence. For a fall gathering, pair it with a warm mug of apple cider or a pumpkin spice latte. This cookie cake is designed to be a crowd-pleaser, perfect for sharing and creating lasting memories.
More Delish Cookies & Cookie Cake Ideas!
If you’ve fallen in love with the ease and deliciousness of cookie cakes or simply adore a good cookie, explore some of our other fantastic recipes:
- OMG! Soft-Batch Mini M&M & Chocolate Chip Cookies
- Leftover Candy Cookie Pie
- Birthday Confetti Frosted Sugar Cookie Bars
- Soft JUMBO Peanut Butter Cookies
- ‘Confetti’ Party Blast Cookie Pie
- M&M Cookie Dough Bars
- JUMBO ‘Soft Batch’ M&M Cookies
Boo-tterscotch M&M Chocolate Chip Cookie Cake
Kim Lange
Pin Recipe
Ingredients
COOKIE CAKE
- 2 and ¼ cup all-purpose flour
- 2 teaspoons cornstarch
- 1 teaspoon baking soda
- ¾ teaspoon salt
- ¾ cup unsalted butter 1 and ½ sticks, melted
- 1 cup firmly packed brown sugar light or dark
- ¼ cup granulated sugar
- 1 large egg + 1 large egg yolk
- 2 teaspoons vanilla extract
- ¾ cup semi sweet chocolate chips
- ¾ cup Boo-tterscotch M&M’s
CHOCOLATE FUDGE FROSTING
- 2 ounces unsweetened baking chocolate coarsely chopped
- 4 Tablespoons unsalted butter
- 1 teaspoon vanilla extract
- 3-4 Tablespoons milk or cream
- 2 cups powdered sugar
- pinch of salt
Instructions
CHOCOLATE CHIP COOKIE CAKE
- Preheat the oven to 350ºF. Spray a 9″ springform pan with non-stick spray*. Set aside.
- In a large bowl, whisk together the flour, cornstarch, baking soda, and salt. Set aside.
- In a medium size bowl, whisk together the butter, brown sugar, and granulated sugar until smooth.
- Whisk in the egg, egg yolk, and vanilla extract until completely combined.
- Pour the wet ingredients into the dry ingredients and stir until no flour clumps remain.
- Fold in the chocolate chips and m&ms and press the cookie dough evenly into the prepared pan.
- Bake for 23-25 minutes until edges begin to brown.
- Remove from oven and allow to cool on a wire rack completely before decorating with frosting.
CHOCOLATE FUDGE FROSTING
- 1 tub of Chocolate Fudge Frosting or make it home-made.
- In a small saucepan over medium heat, melt the unsweetened baking chocolate and the butter. Allow to cool for 15 minutes.
- Using a mixer, combine cooled chocolate/butter mixture, vanilla extract, and milk or cream in a bowl.
- Turn the mixer onto low and slowly add the powdered sugar.
- Increase mixer speed to medium and beat until completely combined, scraping down sides as needed. Add salt to taste.
- Remove cooled cookie cake from springform pan and place on serving platter.
- Fill a piping bag with the frosting and decorate the cookie cake.
- If using, add sprinkles before frosting sets.
- Cookie cake remains fresh covered tightly at room temperature for up to 4 days.
- Undecorated cookie cake may be frozen, up to 2 months.
- Thaw in refrigerator overnight and allow to come to room temperature before decorating.
