BROWNIE SUNDAE COOKIES (Crumbl Copycat)
If you’re looking to indulge in a treat that combines the gooey richness of brownies with the creamy delight of a sundae, you’ve just found your new favorite. This Brownie Sundae Cookies recipe is nothing short of a Delicious Recipe masterpiece, blending fudgy chocolate brownie cookie bases with the lightest vanilla mousse frosting and a luscious hot fudge topping. Every bite bursts with chocolate goodness, a hint of espresso, and that playful pop of rainbow sprinkles topped with a bright maraschino cherry. Trust me, once you make these, they’ll quickly become a crowd-pleaser at every gathering or a special treat just for you.

Ingredients You’ll Need
This Delicious Recipe uses straightforward ingredients that work harmoniously to deliver textures and flavors that delight. Each item is essential: the butter and eggs create a tender crumb, cocoa powder brings deep chocolate notes, and the espresso powder enhances the chocolate’s richness without making it taste like coffee. The pudding mix in the frosting ensures a fluffy, creamy topping, while the hot fudge ganache brings everything together with sparkle and shine.
- Unsalted butter (softened): Provides a rich, creamy base and keeps the cookie tender and moist.
- Large eggs (room temperature): Help bind the dough and contribute to the cookie’s structure and softness.
- All-purpose flour: The foundation of the cookie, balancing density and softness perfectly.
- Dutch processed cocoa powder: Adds deep chocolate flavor with a smooth finish.
- Cornstarch: Gives the cookies a delicate, chewy texture.
- Milk powder: Enhances creaminess and contributes subtle dairy notes.
- Baking powder and salt: Essential for perfect rise and balanced flavor.
- Brown sugar (light or dark): Adds moisture and caramel undertones.
- Granulated sugar: Adds sweetness and crunch.
- Espresso powder: Boosts chocolate flavor complexity.
- Corn syrup: Keeps the dough moist and adds chewiness.
- Pure vanilla extract: Infuses warmth and aroma in both dough and frosting.
- Semi-sweet chocolate chips: Melt in your mouth pockets of chocolate happiness.
- Cream cheese (room temperature): Gives the frosting a luscious tangy balance.
- Heavy whipping cream (icy cold): Whipped to airy perfection in the mousse frosting and ganache.
- Instant vanilla pudding mix: Stabilizes and flavors the frosting beautifully.
- Powdered sugar: Sweetens and thickens the frosting for piping consistency.
- Ghirardelli semi-sweet chocolate chips: Perfect for a smooth, glossy hot fudge topping.
- Karo syrup: Adds shine and smoothness to the ganache.
- Rainbow sprinkles: Brings playful color and a little crunch.
- Maraschino cherries with stems: The classic finishing touch for an irresistible sundae vibe.
How to Make Delicious Recipe
Step 1: Prepare the Brownie Cookie Base
Start by getting your eggs and butter to room temperature for easier mixing and a flawless cookie dough texture. Preheat your oven to 350°F and line baking sheets with parchment paper. Whisk together your dry ingredients – flour, cocoa powder, cornstarch, milk powder, baking powder, and salt – in a medium bowl. In a large bowl, cream the softened butter with both sugars and espresso powder until light and fluffy, about 3 to 4 minutes. Incorporate the eggs one at a time, then mix in the corn syrup and vanilla. Gradually add the dry ingredients, mixing just until combined, and fold in the chocolate chips gently. This dough will be soft and creamy, perfect for your cookie base.
Step 2: Bake the Cookies
Using a large cookie scoop, portion the dough into balls and place six on each baking sheet. Gently flatten each ball with your hand to about ¾-inch thickness. Bake for 12 to14 minutes until the cookie centers puff and lose their glossy sheen, being careful not to overbake so they stay soft. Let them cool on the baking sheets – this is the perfect moment for anticipation to build!
Step 3: Whip Up the Vanilla Mousse Frosting
In a stand mixer bowl, beat room temperature cream cheese until smooth and light. Add vanilla pudding mix and powdered sugar gradually while mixing, then blend in vanilla extract and half of the icy cold heavy whipping cream. Beat on medium speed until light and fluffy, scraping sides as needed. Add more heavy cream one tablespoon at a time until you reach a perfect piping consistency. If the frosting seems too loose, a little extra powdered sugar will thicken it right up.
Step 4: Frost Your Cookies
Once cooled, pipe the vanilla mousse frosting onto each cookie starting from the center and spiraling outward, creating a generous cloud of cream. Chill the cookies to set the frosting while you prepare the decadent hot fudge topping.
Step 5: Make the Hot Fudge Ganache
Combine chocolate chips and heavy cream in a microwave-safe bowl. Heat in 30-second increments, stirring thoroughly each time, until smooth and shiny. Whisk in a teaspoon of Karo syrup to add gloss and help the fudge set beautifully. Spoon a couple of tablespoons over each frosted cookie, swirling gently with the back of your spoon for a perfect finish.
Step 6: Decorate and Chill
Sprinkle rainbow sprinkles immediately over the hot fudge for a burst of fun color and top each cookie with a maraschino cherry for that classic sundae look. Pop them back in the fridge until you’re ready to serve. These chilled delights are even more irresistible cold!
How to Serve Delicious Recipe

Garnishes
The colorful sprinkles and bright, shiny cherries are not just pretty; they add a playful crunch and a sweet tart finish that perfectly balances the rich chocolate and creamy frosting. You could also try adding a dusting of powdered sugar or a drizzle of caramel for another layer of indulgence.
Side Dishes
These cookies shine on their own but pairing them with a glass of cold milk or a scoop of vanilla ice cream elevates the sundae experience to new heights. For a party, a simple bowl of fresh berries offers a refreshing contrast that complements the rich flavors flawlessly.
Creative Ways to Present
Arrange the Brownie Sundae Cookies on a festive platter with napkins themed for your event. You can serve them with mini spoons for guests to scoop up extra frosting or hot fudge. For a whimsical touch, place each cookie on a small dessert plate topped with a dollop of whipped cream and a mint leaf to brighten each serving.
Make Ahead and Storage
Storing Leftovers
Store leftover Brownie Sundae Cookies in an airtight container in the refrigerator to keep the mousse frosting fresh and the cookie moist. They remain delightful for up to 3 days—though they rarely last that long!
Freezing
You can freeze these cookies for longer storage. Freeze un-frosted cookies first for best texture, then thaw and frost as you like. If the cookies are already frosted and decorated, freeze them in a single layer on a baking sheet before transferring to an airtight container to avoid damage. Thaw overnight in the fridge before serving.
Reheating
Since these are meant to be enjoyed chilled, reheating is not recommended. However, if you prefer the cookie slightly warmed, gently warm just the cookie base before frosting or serve with the frosting cold for that signature contrast. Avoid microwaving after frosting to keep the mousse texture perfect.
FAQs
Can I use regular cocoa powder instead of Dutch processed cocoa powder?
Yes, you can substitute regular cocoa powder, but Dutch processed cocoa tends to have a smoother, less acidic flavor which complements this Delicious Recipe beautifully. If using regular cocoa, consider adding a pinch of baking soda to balance the acidity.
Is there a way to make the frosting less sweet?
Absolutely! You can slightly reduce the amount of powdered sugar or vanilla pudding mix in the frosting if you find it too sweet. Adding a bit more cream cheese can also add tanginess and cut the sweetness.
Can I make these cookies gluten-free?
With some tweaks, yes. Swap out the all-purpose flour for a gluten-free baking blend that includes xanthan gum, and ensure your pudding mix and other ingredients are gluten-free certified to maintain that same delicious texture and taste.
How far in advance can I prepare this recipe?
You can make the cookie bases and frosting a day ahead, storing the unfrosted cookies in an airtight container at room temperature. Assemble and decorate the day you plan to serve them for the freshest results.
What if I don’t have an espresso powder?
Don’t worry! The espresso powder enhances the chocolate’s depth but isn’t crucial. Simply omit it or replace it with a teaspoon of instant coffee granules if you like a subtle coffee flavor.
Final Thoughts
I can’t recommend enough giving this Delicious Recipe a try! It’s a beautiful way to combine the indulgence of a brownie and the fun of a sundae all in one perfect cookie. Whether you’re baking it for a special occasion or just craving a seriously good dessert, these Brownie Sundae Cookies will make you feel like you’ve treated yourself to something truly extraordinary. Get your ingredients ready and dive into making magic in your kitchen!
PrintDelicious Recipe
These Brownie Sundae Cookies are a decadent Crumbl copycat recipe featuring a rich chocolate brownie cookie base topped with a fluffy vanilla mousse frosting and decadent hot fudge ganache. Finished with rainbow sprinkles and maraschino cherry, they perfectly mimic a classic sundae in cookie form. Soft, fudgy, and indulgently creamy, these cookies make for an impressive dessert treat.
- Prep Time: 30 minutes
- Cook Time: 14 minutes
- Total Time: 1 hour 15 minutes
- Yield: 30 cookies 1x
- Category: Dessert, Cookies
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Chocolate Brownie Cookie Base
- 1–1/2 cups (3 sticks) unsalted butter, softened
- 3 large eggs, room temperature
- 3–3/4 cups (450g) all-purpose flour
- 1 cup (100g) Dutch processed cocoa powder
- 2 tablespoons (15g) cornstarch
- 1 tablespoon (5g) milk powder
- 2 teaspoons baking powder
- 1 teaspoon salt
- 1–1/2 cups (319g) brown sugar, light or dark
- 1/2 cup (100g) granulated sugar
- 1 teaspoon espresso powder
- 2 tablespoons corn syrup
- 1 tablespoon pure vanilla extract
- 1–1/2 cups semi-sweet chocolate chips
Vanilla Mousse Frosting
- 6 oz. (170g) cream cheese, room temperature
- 2 ½ cups heavy whipping cream, icy cold
- 6 tablespoons instant vanilla pudding mix
- 1 cup (120g) powdered sugar
- 1 teaspoon pure vanilla extract
Hot Fudge Topping
- ¼ cup heavy cream
- 1 cup (170g) Ghirardelli semi-sweet chocolate chips
- 1 teaspoon Karo syrup
- Rainbow sprinkles, for decorating
- 30 maraschino cherries with stems, for topping
Instructions
- Prepare the Brownie Cookie Base: Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper. In a medium bowl, whisk together flour, cocoa powder, cornstarch, milk powder, baking powder, and salt until well combined.
- Cream Butter and Sugars: In a large mixing bowl, beat the softened butter, brown sugar, granulated sugar, and espresso powder on medium speed until fluffy and creamy, about 3-4 minutes. Scrape down sides as needed.
- Add Eggs and Flavorings: Add eggs one at a time, beating well after each addition. Then mix in corn syrup and vanilla extract until combined.
- Incorporate Dry Ingredients: Add the flour mixture in two additions, mixing just until incorporated each time. Be careful not to overmix. Fold in the semi-sweet chocolate chips evenly.
- Shape and Bake Cookies: Using a large cookie scoop (about 3 tablespoons), scoop dough balls and roll them by hand. Place six per baking sheet with space between. Flatten each ball gently to about ¾-inch thick. Bake for 12-14 minutes until centers puff and no longer look glossy. Cool on baking sheets.
- Make Vanilla Mousse Frosting: With a stand mixer, beat room temperature cream cheese until light. Add vanilla pudding mix and powdered sugar; mix until combined. Incorporate vanilla and icy cold heavy cream, beating on medium speed until light, fluffy, and smooth. Adjust consistency with extra cream or powdered sugar as needed for piping.
- Pipe Frosting on Cookies: Transfer frosting to a piping bag fitted with a large round tip. Once cookies reach room temperature, pipe frosting onto the top in a circular motion evenly covering each cookie. Chill cookies to set the frosting.
- Prepare Hot Fudge Ganache: In a microwave-safe bowl, combine chocolate chips and heavy cream. Microwave in 30-second intervals, stirring between each, until smooth and melted. Stir in Karo syrup until glossy.
- Decorate Cookies: Spoon about 2 tablespoons of warm hot fudge ganache over each frosted cookie, swirling gently with the back of a spoon for a smooth finish. Immediately sprinkle with rainbow sprinkles and top each cookie with a maraschino cherry with stem.
- Final Chill and Serve: Refrigerate the decorated cookies until ready to serve. These Brownie Sundae Cookies are best enjoyed chilled for the perfect balance of soft cookie, creamy frosting, and warm fudge topping.
Notes
- Be sure not to overbake the cookies to ensure they stay soft and fudgy.
- Room temperature eggs and butter help achieve a creamy, well-incorporated dough.
- The frosting requires icy cold cream to whip properly and hold structure.
- If frosting is too thin, add powdered sugar a little at a time until desired consistency is reached.
- Use a large cookie scoop to keep cookie size consistent for even baking.
- Store frosted cookies refrigerated and consume within 3-4 days for best freshness.
- For a stronger coffee flavor, increase the espresso powder slightly in the cookie dough.
Nutrition
- Serving Size: 1 cookie
- Calories: 420
- Sugar: 30g
- Sodium: 150mg
- Fat: 25g
- Saturated Fat: 14g
- Unsaturated Fat: 9g
- Trans Fat: 0.2g
- Carbohydrates: 48g
- Fiber: 4g
- Protein: 5g
- Cholesterol: 65mg
Keywords: Brownie Sundae Cookies, Crumbl Copycat, Chocolate Cookies, Sundae Cookies, Vanilla Mousse Frosting, Hot Fudge Ganache, Dessert Cookies