Apple Banana Bundt Cake Recipe: Spiced Fruit Swirls With Buttery Streusel Crown

This apple banana bundt cake delivers the perfect balance of spiced fruit swirls and buttery streusel crown—ideal for fall gatherings or cozy weeknight treats. The secret lies in folding ripe bananas and diced apples into a tender cake batter, then topping it with a crumbly streusel that caramelizes beautifully.

I developed this recipe after years of testing, ensuring every slice offers moist crumb, warm cinnamon notes, and just the right texture contrast.

What makes this bundt cake special is its foolproof technique: a simple batter that comes together in one bowl, with no complicated steps. The streusel topping adds irresistible crunch, while the bundt pan creates elegant ridges that hold dressing perfectly.

Baking at 350°F for 50-60 minutes yields a golden crown and tender interior—no guesswork required. The best part? It tastes even better the next day, making it perfect for meal prep or holiday baking.

Imagine the first bite: warm, spiced cake with pockets of sweet banana and apple, topped with that buttery streusel that melts slightly into every forkful. This recipe transforms ordinary fruit into a showstopper dessert that feels like a bakery creation.

Whether you're serving it with vanilla ice cream or a drizzle of caramel, it's guaranteed to disappear quickly.

For added flair, brush the warm cake with a simple syrup or dust with powdered sugar. The bundt shape makes it naturally elegant, perfect for celebrations or when you want to impress without spending hours in the kitchen. Let's get baking!

Ingredients for apple banana bundt cake

Twelve ingredients transform into a showstopping bundt cake with spiced fruit swirls and buttery crown.

The bananas and apples are the stars here—ripeness matters most. Grab Granny Smith for tartness or Honeycrisp for sweetness at your local grocery store. I always check the produce section for firm but yielding fruit—no mushy spots. Toast the walnuts in a dry pan for 3-4 minutes until fragrant (that smell is worth it). For the flour, Bob's Red Mill or your supermarket's name brand works perfectly—just sift it to avoid lumps. The oats should be old-fashioned, not quick-cooking, for that perfect crumb texture in the streusel.

No Granny Smith? Fuji or Gala apples work too—just dice them smaller. Bananas too ripe? Mash them first, then measure the batter. Running short on walnuts? Pecans or almonds add a different buttery crunch. The streusel can be prepped ahead and stored in the fridge for up to 3 days—just press it into the pan right before baking. For extra flavor, swap half the walnuts for chopped dried cranberries (soak them in warm water first to plump up). And if you're feeling fancy, add 1 tsp lemon zest to the batter for brightness.

This cake keeps beautifully—wrapped at room temperature for 3 days or frozen for 3 months. The streusel topping stays crisp if you store it in an airtight container. For serving, dust with powdered sugar or brush with simple syrup (equal parts sugar and water, heated until dissolved). Leftovers? Slice and toast for a quick breakfast treat. Pro tip: Use a 10-12 cup bundt pan—it's the perfect size for gatherings, and the ridges make every slice look elegant.

Step-by-step instructions for apple banana bundt cake

Here's how to create a showstopping Bundt cake with perfect fruit swirls and a crunchy streusel crown.

First, let's handle the star ingredients—the fruit filling and streusel. In a medium bowl, combine the mashed ripe bananas with the diced apples, ensuring they're cut into small, even pieces. This creates a beautiful swirl pattern when baked. I like to toss them with a pinch of the ground cinnamon and a sprinkle of the granulated sugar to enhance their natural sweetness.

For the streusel topping, pulse the old-fashioned oats in a food processor until they resemble coarse flour. In a separate bowl, mix these oat flour with the cold cubed butter, packed brown sugar, chopped walnuts, and the remaining cinnamon. Rub the mixture between your fingers until it forms crumbly, pea-sized clumps. This texture is crucial for that perfect crunchy crown. Keep both mixtures covered and refrigerated until ready to use.

Preheat your oven to 350°F and generously grease a 10-12 cup Bundt pan with butter or baking spray, then dust with flour. This ensures easy removal later. In a large mixing bowl, whisk together the 2.5 cups all-purpose flour, 2 tsp baking powder, 1.5 tsp ground cinnamon, and 0.5 tsp salt. Sift the flour mixture into the bowl to avoid lumps.

In another bowl, beat the 1 cup unsalted butter and both sugars (2 cups granulated sugar and 0.5 cup packed brown sugar) together until light and fluffy—about 3-4 minutes. Add the 2 whole large eggs one at a time, mixing well after each addition. Stir in the 2 tsp vanilla extract until fully combined. Gradually add the dry ingredients to the wet mixture, alternating with the mashed bananas, and mix until just combined. Be careful not to overmix—you want a smooth batter with no dry spots.

Pour half of the prepared batter into the greased Bundt pan. Using a spoon or small spatula, create a well in the center and add half of the fruit filling. Gently swirl the fruit into the batter, creating a marbled effect. Pour the remaining batter over the fruit and swirl it again to create a beautiful pattern. Top with the streusel mixture, pressing it lightly into the batter to ensure it sticks.

Bake in the preheated oven for 50-60 minutes, or until a toothpick inserted into the center comes out clean. The cake is done when the top is golden brown and the edges pull away slightly from the pan. If the streusel starts to brown too quickly, tent the pan with foil to prevent over-browning. The cake is best served warm, straight from the oven, with a dusting of 0.25 cup powdered sugar for that final touch of elegance.

Allow the cake to cool in the pan for 10 minutes before carefully inverting it onto a wire rack. This gradual cooling helps maintain the cake's shape and prevents it from falling apart. Once completely cooled, dust the top and sides with the remaining powdered sugar for a professional finish. The contrast of the warm, spiced cake with the cool, sweet powdered sugar creates a sensory delight.

Slice the cake into 12 generous servings and enjoy it with a dollop of whipped cream or a scoop of vanilla ice cream. The combination of tender cake, juicy fruit swirls, and crunchy streusel makes every bite a celebration of autumn flavors. Store any leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to 5 days.

Best sauces and condiments for this recipe

Caramel Drizzle

Warm the cake with a simple caramel drizzle made from ½ cup heavy cream, ¼ cup granulated sugar, and 1 tbsp unsalted butter. Heat all ingredients in a saucepan over medium heat until sugar dissolves, then simmer for 3-4 minutes until thickened.