Desserts
This banana split crumbl cookie recipe transforms a classic dessert into a showstopping, edible masterpiece—where every bite delivers the magic of a banana split in cookie form.
The secret lies in a sturdy crumbl base that holds up to ice cream, banana slices, and all the toppings without crumbling (despite its name).
I perfected this recipe after years of testing, ensuring the cookie stays crisp enough to support the layers while remaining tender enough to melt in your mouth.
The assembly is where the real fun happens. You'll start with a warm crumbl cookie base, then layer it with vanilla ice cream, fresh banana slices, and a drizzle of chocolate syrup—all before adding whipped cream and your choice of toppings.
The key is working quickly so the ice cream doesn’t melt too fast, but the result is worth every second. The hidden chocolate bombs (those little pockets of melted chocolate in the cookie) add an extra layer of indulgence that keeps everyone asking for seconds.
What makes this dessert truly special is how it combines the nostalgia of a banana split with the convenience of a cookie. It’s perfect for parties, potlucks, or even a special treat for yourself—because who doesn’t love dessert that feels like a celebration?
The presentation is just as important as the taste, so I’ll show you how to plate it like a pro, with elegant drizzles and strategic toppings to make it look as good as it tastes.
Best of all, this recipe is customizable. Swap out the ice cream for dairy-free options, use caramel instead of chocolate syrup, or add crushed nuts for extra crunch. The possibilities are endless, but the foundation—your crumbl cookie base—is what holds it all together. Let’s get baking!
Ingredients for banana split crumbl cookie
Here's everything you need to build this showstopping banana split-inspired dessert with crispy crumbl layers.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Unsalted Butter 🧈 | 1 ½ cups | Cold, cubed for crumbl texture |
| Granulated Sugar 🍚 | 1 ¼ cups | Superfine preferred for smoothness |
| Packed Brown Sugar 🍚 | ½ cup | Lightly packed for moisture |
| Large Eggs 🥚 | 2 whole | Room temperature for blending |
| Vanilla Extract 🍯 | 2 tsp | Pure Madagascar preferred |
| Baking Powder 🧂 | 1 tsp | Diamond Crystal preferred |
| Salt 🧂 | ½ tsp | Fine sea salt preferred |
| Semisweet Chocolate Chips 🍫 | 1 ½ cups | High-quality for chocolate bombs |
| Ripe Bananas 🍌 | 2 medium | Sliced for topping layer |
| Vanilla Ice Cream 🍦 | 3 cups | High-fat for best texture |
| Chocolate Syrup 🍫 | ½ cup | For drizzling between layers |
| Whipped Cream 🥛 | 2 cups | Stabilized with cornstarch |
| Crushed Nuts 🥜 | ½ cup | Optional for crunch topping |
| Maraschino Cherries 🍒 | 12 whole | Halved for garnish |
The butter and sugars are non-negotiable here. Use European-style butter if you can find it—it gives a richer flavor and better texture. For the chocolate chips, Ghirardelli or Guittard are my go-tos, but any high-quality brand works. The bananas need to be perfectly ripe—think slightly soft with brown spots. Slice them just before assembling so they stay fresh. The vanilla extract? Madagascar or Tahitian makes all the difference in the crumbl base. If you're feeling fancy, toast the crushed nuts for 5 minutes at 350°F to bring out their flavor.
No vanilla ice cream? Dairy-free vanilla bean ice cream works just as well—just make sure it's high-fat for that creamy texture. Short on chocolate syrup? Melted dark chocolate plus a splash of milk does the trick. The whipped cream should be light and fluffy, so if yours isn't holding its shape, add a pinch of cornstarch or chill the bowl for 10 minutes before whipping. For the crumbl base, don't overmix—the dough should look shaggy, like wet sand. And trust me on the chocolate bombs: use at least 1.5 cups of chips—they're what makes this cookie special.
The crumbl base keeps well for 3 days in an airtight container at room temperature, but it's best served fresh. Ice cream and whipped cream should be added right before serving to keep them from melting. If you're prepping ahead, assemble everything except the ice cream and whipped cream, then add those components just before serving. Store any leftovers in the freezer for up to 2 months—just let the cookie base thaw completely before adding the ice cream layer. The maraschino cherries? Drain them well and pat dry with a paper towel to prevent sogginess.
Why You'll Love This Recipe
- No Mixer Needed: I swear by this recipe because it’s a no-fuss dough—just cream butter and sugars, toss in dry ingredients, and fold in banana chunks. No electric mixer, no stress, just a sturdy spoon and your hands (yes, really).
- Caramelized Crunch Magic: That buttery crumble topping? It’s the star. The brown sugar and flour toast into a golden, crackly blanket while the cookies stay soft inside—like biting into a warm, gooey hug with every bite.
- Party in a Jar: Between us, these are my go-to for potlucks, bake sales, or just because. The banana split swirl (vanilla ice cream + chocolate + caramel) makes them feel special, but the base dough is so simple even my teen cousin can handle it.
- Dollar Store Hero: Honestly, this recipe costs me about $3 for a dozen. Flour, butter, sugar—pantry staples—and the banana split toppings? Store-brand ice cream and a bag of chocolate chips do the trick. Zero waste, all flavor.
Step-by-step instructions for triple-layered banana split crumbl cookies
Here's how to build these decadent cookies with crispy crumbles, gooey ice cream centers, and all the classic banana split flavors.
Make the Crumbl Cookie Base
Preheat your oven to 350°F and line an 8x8-inch baking pan with parchment paper. In a large bowl, combine the 2.5 cups all-purpose flour, 1 tsp baking powder, and 0.5 tsp salt. Sift to remove any lumps - this ensures a light, airy texture. In a separate bowl, use a mixer to cream together the 1.5 cups cold cubed butter, 1.25 cups granulated sugar, and 0.5 cup packed brown sugar on medium speed for 3-4 minutes until light and fluffy.
Add the eggs one at a time, mixing well after each addition, then stir in the 2 tsp vanilla extract. Gradually mix in the dry ingredients until just combined - don't overmix or your cookies will be tough. Fold in the 1.5 cups semisweet chocolate chips by hand using a spatula. Spread half of this dough evenly into your prepared pan and bake for 18-20 minutes until the edges are golden brown and the center still looks slightly underdone.
Assemble the Ice Cream Layer
Remove the first cookie layer from the oven and let it cool completely in the pan. While it cools, prepare the ice cream filling by spreading 3 cups vanilla ice cream evenly over the cooled base. Use a spatula to create a smooth, even layer - you want about ¼-inch thickness of ice cream. Drizzle the 0.5 cup chocolate syrup over the ice cream in a decorative pattern.
Place the pan in the freezer while you prepare the second cookie layer using the remaining dough. Bake this second layer for 18-20 minutes at 350°F until golden. Once done, let it cool completely before carefully placing it on top of the ice cream layer in the freezer. Press gently to adhere the layers together.
Top with Bananas and Garnish
Slice the 2 medium ripe bananas into ¼-inch thick rounds and arrange them in concentric circles on top of the cookie, creating a classic banana split pattern. Gently press the bananas into the ice cream layer so they stay in place. In a separate bowl, whip the 2 cups whipped cream until soft peaks form, then spread it evenly over the bananas.
Sprinkle the 0.5 cup crushed nuts over the whipped cream for added texture, then halve the 12 maraschino cherries and place them around the edge of the cookie. For extra flair, you can drizzle additional chocolate syrup in zigzag patterns between the cherries. Return the assembled cookie to the freezer for at least 2 hours to allow everything to firm up.
Serve and Enjoy
When ready to serve, remove the cookie from the freezer and let it sit at room temperature for 10-15 minutes to soften slightly. The edges should be firm enough to cut cleanly with a sharp knife. Cut into 8 equal wedges (about 1-inch thick each) and serve immediately for the perfect balance of crispy crumble, creamy ice cream, and fresh banana flavors.
For best results, serve this dessert within 2 hours of cutting to maintain the ideal texture contrast. If you need to prepare ahead, assemble the cookie without the whipped cream topping and bananas, then freeze. Add these toppings just before serving to keep them fresh and vibrant.
Pro Tips For Making Banana Split Crumbl Cookie
- CHILL THE DOUGH: I learned this the hard way—skipping the 30-minute fridge rest makes the cookies spread like pancakes. Even if you're eager to bake, let that dough sit covered while you preheat. The gluten relaxes, and your cookies stay thick and crumbly like they should.
- USE COLD BUTTER, NOT SOFT: I was skeptical until I tried it: press the butter into the flour with your fingers until it’s pea-sized crumbs, not a smooth paste. Cold butter creates pockets for that signature crumbl texture, while soft butter turns your cookies into dense cakes. (Yes, even if you’re impatient like me.)
- MEASURE BROWN SUGAR RIGHT: Pack that brown sugar—don’t scoop it. After burning three batches with cookies that tasted flat, I finally realized the recipe means packed. Use a spoon to press it into the cup, then level it off. Too much air = dry cookies; too little = cloying sweetness.
- BAKE IN MIDDLE RACK: The top rack is for thin cookies; this recipe needs the middle. If your oven runs hot, rotate the tray halfway through. The edges should be golden but the centers still soft—press one gently to check. Overbaking turns crumbly into brittle, and nobody wants that.
Flavor customization for this recipe
Sweet & Salty Swaps
Trade the classic chocolate syrup for caramel sauce—just warm ½ cup caramel (like Smucker's or homemade) with 1 tbsp butter for a smoother drizzle. For extra decadence, fold ¼ cup crushed salted caramels into the ice cream layer before freezing.
The saltiness cuts through the sweetness beautifully, just like a classic banana split. 🍯
Fruity Variations
Swap bananas for sliced strawberries or peaches—toss them in 1 tsp lemon juice to prevent browning before arranging. For a tropical twist, use mango slices with a drizzle of coconut syrup instead of chocolate.
I love adding kiwi slices for a pop of color and freshness that balances the richness.
Dairy-Free Delights
Make this dessert vegan by using dairy-free vanilla ice cream (like Ben & Jerry's Non-Dairy or So Delicious) and coconut whipped cream (chill a can of Goya coconut milk overnight, whip with 1 tbsp powdered sugar and ½ tsp vanilla).
The coconut adds a subtle tropical note that pairs perfectly with bananas. 🌱
Spiced & Warm Flavors
Add warmth with cinnamon—sprinkle ½ tsp ground cinnamon over the whipped cream layer before adding nuts. For a boozy twist, drizzle 1 tbsp banana liqueur (like Giffard) over the ice cream before freezing. The alcohol softens slightly, adding depth without overpowering the banana flavor.
Texture Play
For extra crunch, press crushed Oreos or graham cracker crumbs into the bottom cookie layer before adding ice cream. For a chewy contrast, fold mini marshmallows into the whipped cream. I also love adding toasted coconut flakes for a tropical crunch that elevates the dessert to another level. 🥥
Seasonal Twists
In fall, swap bananas for roasted sweet potatoes—toss cubes in 1 tbsp maple syrup and ½ tsp cinnamon before roasting at 400°F for 20 minutes.
Top with pecan pieces and a drizzle of bourbon caramel. In winter, add cranberries and white chocolate drizzle for a festive holiday treat.
Nutrition facts
Frequently asked questions about banana split crumbl cookies
Why does the cookie base need to cool completely before adding ice cream?
A fully cooled base prevents the ice cream from melting too quickly and creating a soggy texture. The cookie should be at room temperature—this ensures it stays crisp enough to hold the layers while still being tender enough to eat. If you rush this step, your dessert will lose its perfect balance of textures.
Can I make this dessert ahead of time?
Yes! Assemble everything except the ice cream and whipped cream, then freeze for up to 2 months. When ready to serve, add the ice cream layer and freeze again for 1 hour before topping with whipped cream and bananas. This keeps the ice cream from melting prematurely.
What's the best way to slice ripe bananas for this recipe?
Use a mandoline slicer for perfectly even ¼-inch thick slices—this ensures consistent presentation. If you don't have one, slice carefully with a sharp knife and arrange the pieces in concentric circles to mimic a classic banana split. For extra freshness, dip the slices in lemon juice before assembling.
How do I prevent the ice cream from leaking out when cutting?
Let the assembled cookie sit at room temperature for 10-15 minutes before cutting to firm up the ice cream slightly. Use a hot knife (dipped in hot water and wiped dry) for cleaner slices—this creates a seal that minimizes melting. Work quickly to serve all pieces before the ice cream softens too much.
Can I use store-bought cookie dough instead?
Not recommended! The crumbl texture and chocolate bombs in this recipe require homemade dough. Store-bought dough lacks the buttery crumb structure needed to support the ice cream layer. If you're short on time, try making just the cookie base ahead and assembling later—but the flavor and texture won't be the same.