Desserts
This banana split crumbl cookie recipe transforms a classic dessert into a showstopping, edible masterpiece—layered with vanilla bean swirls, crunchy pretzel bits, and all the nostalgic flavors of a banana split. 🌟 The secret lies in a crispy, buttery crumbl base that holds up to ice cream without turning soggy, while the cookie dough swirls create pockets of creamy vanilla goodness in every bite.
What makes this recipe special is the perfect balance of textures: the crunchy cookie base, the soft, swirled cookie dough, and the pretzel bits that add a salty contrast to the sweet banana and ice cream.
Unlike traditional banana splits, this dessert is baked—not melted—so it stays sturdy enough to slice (yes, you can serve it that way!) while still delivering that familiar, comforting taste.
By the time you're done, you'll have a dessert that looks like a work of art and tastes like a nostalgic trip to the ice cream parlor.
The vanilla bean swirls add depth, the pretzel bits bring that salty crunch, and the banana and ice cream layers make every bite feel like a celebration. It's the kind of dessert that makes guests ask for the recipe—and keeps them coming back for seconds.
Best of all, this recipe scales beautifully—whether you're serving a crowd or treating yourself to a single, indulgent slice. The assembly is simple, but the result is anything but basic. Let's get baking!
Ingredients for banana split crumbl cookie
Four layers of nostalgic flavors—crunchy base, creamy swirls, and all the toppings you crave.
| Ingredient | Amount | Notes |
|---|---|---|
| Unsalted Butter 🧈 | 1 ½ cups | Cold, cubed for crumbl texture |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Packed Brown Sugar 🍚 | ½ cup | Dark brown preferred |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Vanilla Extract 🍯 | 2 tsp | Pure vanilla preferred |
| Baking Powder 🧂 | 1 tsp | Aluminum-free |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Pretzel Bits 🍞 | 1 ½ cups | Crushed for texture |
| Ripe Bananas 🍌 | 2 medium | Mashed for swirls |
| Vanilla Bean Paste 🍯 | 2 tsp | Seeds scraped in |
| Vanilla Ice Cream 🍦 | 2 cups | High-fat preferred |
| Chopped Walnuts 🥜 | ½ cup | Toasted for crunch |
| Melted Chocolate 🍫 | ½ cup | Dark or semi-sweet |
| Caramel Sauce 🍯 | ½ cup | Store-bought or homemade |
The butter makes or breaks this crumbl—European-style unsalted gives the best flavor and texture. Grab the Plugrá brand if you're at a specialty store, or any high-fat butter from Whole Foods or Trader Joe's. The flour should be fresh; if it smells stale, toast it in a dry pan for 5 minutes to revive it. For the pretzel bits, Snyder's or Utz are the gold standard—crunchy and salty. If you can't find them, crush plain pretzel twists yourself. The bananas need to be ripe but firm—think yellow with a few brown spots, not mushy.
No vanilla bean paste? Pure vanilla extract plus scraped seeds from a vanilla bean works just as well. Short on walnuts? Pecans or hazelnuts are great substitutes, but toast them first for that nutty aroma. The ice cream can be any flavor you love, but high-fat vanilla (like Häagen-Dazs or Breyers) melts slower and keeps the cookie from getting soggy. For the chocolate, Ghirardelli or Guittard chips melt perfectly—just toss them in a microwave-safe bowl with 20 seconds of work. The caramel sauce? Store-bought is fine—just make sure it's smooth, not grainy.
This dessert keeps beautifully in the fridge for 5 days, but the flavors peak after 2 days. For best results, assemble it the night before and let the ice cream soften slightly before serving. If you're making it ahead, freeze the assembled cookies (without ice cream) for up to 2 months. Just let them thaw at room temperature before adding the ice cream. The crumbl base stays crispy if stored in an airtight container with parchment between layers.
Why You'll Love This Recipe
- No Mixer Needed: I swear by this recipe when I’m in a rush—just cream the butter and sugars by hand (or use a fork), then fold in the dry stuff. The dough comes together faster than you can say “banana split,” and the crumbly texture is pure magic without overworking it.
- Sweet & Salty Magic: That combo of brown sugar and granulated sugar gives these cookies a caramelized chew, while the butter keeps them rich but not greasy. Honestly, the first bite tastes like dessert, but they’re sturdy enough to handle a glass of milk or coffee—no guilt, just satisfaction.
- Party in a Jar: Between us, these are my go-to for potlucks, book clubs, or just because. They freeze beautifully, so I can bake a batch ahead and pull them out whenever I need an easy crowd-pleaser. (Yes, even on a Tuesday night.)
- Budget-Friendly Comfort: Five ingredients, one bowl, zero fancy tools—this recipe is my wallet’s best friend. A single batch stretches across days, and the leftovers? Even better the next day when the edges get slightly crispier. My secret weapon for lazy days and happy stomachs.
Step-by-step instructions for banana split crumbl cookies
Transform classic banana split flavors into a decadent cookie experience with this foolproof method.
👨🍳 Step 1: Prepare the Crumbl Topping
In a medium bowl, combine the 1.5 cups unsalted butter (cold, cubed) with 2.5 cups all-purpose flour, 1.5 cups granulated sugar, 0.5 cup packed brown sugar, 1.5 cups pretzel bits, 0.5 cup chopped walnuts, 1 tsp baking powder, and 0.5 tsp salt. Use your fingers or a pastry cutter to work the mixture until it resembles coarse crumbs with pea-sized butter pieces remaining.
Here's the thing—those cold butter pieces are what create the signature crumbl texture. Press the mixture into an even layer in a 9-inch square baking dish, smoothing the top with your fingers. This base will form the crispy, buttery topping that contrasts perfectly with the soft cookie layers below.
👨🍳 Step 2: Mix the Cookie Dough
In a separate large bowl, mash the 2 medium ripe bananas until smooth, then whisk in the 2 whole large eggs (room temperature), 2 tsp vanilla extract, and 2 tsp vanilla bean paste. The mixture should be thick but pourable. In a small bowl, sift together the remaining 2.5 cups all-purpose flour, 1 tsp baking powder, and 0.5 tsp salt. Gradually fold the dry ingredients into the banana mixture just until combined.
Don't overmix—you're aiming for a thick, sticky dough with a few flour streaks visible. This ensures tender cookies rather than dense ones. The vanilla bean paste adds that professional-level depth of flavor that separates homemade from store-bought.
🥘 Step 3: Assemble the Cookie Layers
Spread the banana dough evenly over the crumbl mixture in the prepared baking dish. The dough should be about ¼-inch thick—press it down gently to remove air bubbles. This layering creates the signature texture contrast that makes these cookies special.
Here's where it gets fun—drizzle the 0.5 cup melted chocolate and 0.5 cup caramel sauce over the banana layer in zigzag patterns. The melted chocolate will create beautiful marbled effects when baked, while the caramel adds that classic banana split sweetness. Don't worry about perfect patterns—they'll blend beautifully during baking.
🔥 Step 4: Bake to Golden Perfection
Preheat your oven to 350°F. Bake the assembled cookie for 30-35 minutes until the edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs (not wet batter). The crumbl topping should be crisp while the center remains soft and gooey.
This is the moment that matters: the contrast between the crispy crumbl topping and the soft, banana-infused cookie below. If the top browns too quickly, tent the dish with foil for the last 5-10 minutes of baking. The cookies will continue setting as they cool, so don't overbake.
⏰ Step 5: Add Ice Cream and Chill
Remove the cookie from the oven and let it cool for 10 minutes in the pan. Then, using a spatula, carefully spread the 2 cups vanilla ice cream evenly over the warm cookie. The residual heat will help the ice cream melt slightly and create that perfect "banana split" texture when served.
Cover the baking dish with plastic wrap and freeze for at least 4 hours (or overnight). This chilling step is crucial—it allows the cookie layers to set properly and the ice cream to firm up without melting completely. When ready to serve, let the cookie sit at room temperature for 10-15 minutes before cutting into squares.
Pro Tips For Making Banana Split Crumbl Cookie
- Cream Butter Slowly: The butter in these cookies isn’t just fat—it’s what gives them that melt-in-your-mouth crumbliness. Use a stand mixer (or hand mixer) to beat the butter and sugars together for at least 3-4 minutes until it’s pale and fluffy. I used to rush this, and the cookies turned out dense. The butter needs time to incorporate air, or you’ll end up with something closer to a cake than a cookie.
- Measure Brown Sugar Right: Packed brown sugar isn’t just "a little more than granulated"—it’s packed for a reason. Use a spoon to press it firmly into the measuring cup, then level it off. Too much air in your sugar means uneven moisture distribution, and your cookies might spread too much or stay doughy in the center. Trust me, the difference is noticeable.
- Chill the Dough: These cookies are forgiving, but if you’re baking in a hot kitchen or your dough feels too soft, wrap it and refrigerate for 30 minutes before scooping. Cold dough resists spreading, so you’ll get thicker, chewier cookies with those perfect crumbly edges. I learned this the hard way—skipping it left me with pancake-thin cookies that burned before they set.
- Use Room-Temp Eggs: Cold eggs from the fridge can cause the dough to seize up or create pockets of uneven texture. Let your eggs sit out for 10-15 minutes before mixing—just until they’re slightly warm to the touch. This ensures they blend smoothly into the butter and sugar, giving you a uniform dough that bakes evenly. (Yes, even if you’re impatient like me.)
Storing and reheating this banana split crumbl cookie
Refrigerator Storage
Store your assembled banana split crumbl cookies in an airtight container with parchment paper between layers to prevent sticking. Keep them refrigerated for up to 5 days, but the flavors peak after 2 days when the ice cream softens slightly.
I like using glass Pyrex containers because they keep the cookies fresh longer and allow me to see the layers. 💫
Freezer Storage
For longer storage, freeze the baked cookie base (without ice cream) in a single layer on a parchment-lined tray for 1 hour. Then transfer to a freezer-safe bag with 1 inch of headspace for expansion.
This method prevents freezer burn and keeps the crumbl texture intact for up to 2 months. Thaw at room temperature for 1-2 hours before adding ice cream.
Reheating Slices
To revive a chilled slice, microwave it on high for 10-15 seconds to soften the ice cream slightly. For a stovetop approach, place the slice on a non-stick skillet over low heat for 30 seconds—just enough to warm the ice cream without melting it completely.
This keeps the crumbl base crispy while making the ice cream scoopable. ✨
Ice Cream Refresh
If the ice cream looks dry after storage, add a thin layer of caramel sauce or melted chocolate on top before serving. The heat from the cookie will help it blend in beautifully.
I also like to sprinkle extra pretzel bits or chopped walnuts on top for that fresh-from-the-parlor crunch. 🍦
Avoiding Sogginess
Never reheat the entire cookie—it will turn into a gooey mess. Instead, focus on warming individual slices just enough to soften the ice cream. If storing leftovers, keep them in the freezer between uses to maintain texture.
The key is quick reheating—no more than 20 seconds in the microwave. 💡
Make-Ahead Assembly
Assemble the cookie (without ice cream) up to 2 days in advance and store it in the fridge. When ready to serve, add the ice cream and freeze for 4 hours.
This method ensures the cookie layers stay crisp while the ice cream sets perfectly. I always make mine the night before—it’s the secret to restaurant-quality texture. 🌟
Nutrition facts
Frequently asked questions
Can I make this recipe without a baking dish?
You can use a 9-inch round cake pan or even a pie dish instead, but a square baking dish gives the cleanest slices for serving. If using a round pan, press the crumbl mixture evenly and adjust the baking time to 28-32 minutes—check for doneness at 28 minutes since round pans can bake faster. The key is even thickness for consistent texture.
How do I prevent the ice cream from melting too fast?
First, let the cookie cool for 10 minutes after baking before adding ice cream—this helps it set slightly. Then, spread the ice cream evenly and freeze for at least 4 hours. For extra insurance, place the assembled cookie on a parchment-lined tray in the freezer before covering with plastic wrap. This creates a barrier that prevents the ice cream from melting into the cookie base.
What if I don't have vanilla bean paste?
No problem! Use 2 tsp pure vanilla extract plus 1 tsp scraped vanilla bean seeds instead. The seeds add those tiny specks that make the flavor pop. If you can't find vanilla beans, 1 tsp vanilla extract plus ½ tsp almond extract works as a budget-friendly alternative—just reduce the vanilla extract to 1.5 tsp total to balance the flavors.
Can I make this gluten-free?
Yes, but with adjustments. Replace the all-purpose flour with a 1:1 gluten-free baking flour blend (like Bob's Red Mill) and add 1 tsp xanthan gum to improve texture. For the crumbl topping, use gluten-free pretzel bits and ensure your vanilla extract is gluten-free. Expect the cookies to be slightly denser, but they'll still hold up well with the ice cream. The crumbl texture will be less crispy, so bake it for 2-3 extra minutes.
How do I make individual servings?
Press the crumbl mixture into 4 individual ramekins or mini loaf pans (about 4-ounce size) and bake for 18-20 minutes at 350°F. After baking, let cool for 10 minutes, then add ½ cup ice cream to each. Freeze for 3 hours and serve straight from the ramekins for a single-serving dessert. These make perfect party favors or individual treats!