Apple Blackberry Crumble Cake: A Perfect Dessert

Apple and blackberry crumble cake is an irresistibly moist, fruity dessert that combines the comforting flavors of baked apples and juicy blackberries with the crunchiness of a crumble topping. This cake is perfect for fall, but it’s great year-round, whether you’re hosting a gathering or simply craving a homemade treat. The sweet and tangy flavor profile makes it a universally loved dessert, especially for those who enjoy the balance between fruity fillings and rich, buttery toppings.
What’s great about this crumble cake is how versatile it is. It’s easy to make and doesn’t require any special baking techniques. The addition of fresh apples and blackberries gives it a naturally sweet, tart contrast that complements the texture of the cake and crumble topping. Whether you’re using frozen berries or fresh fruit, this recipe will still deliver the same great flavor.
What You’ll Need to make Apple Blackberry Crumble Cake
To make this apple blackberry crumble cake, you’ll need some common baking ingredients, as well as a few key ingredients that give the cake its distinct fruity flavor. Here’s what you’ll need:
For the Cake:
- 1 ½ cups all-purpose flour
- 1 cup granulated sugar
- 1 tsp baking powder
- 1/2 tsp baking soda
- ½ tsp salt
- ½ cup unsalted butter (room temperature)
- 2 large eggs
- 1 tsp vanilla extract
- 1/2 cup whole milk (or you can use almond milk for a non-dairy version)
- 2 cups peeled and chopped apples (about 2 medium apples)
- 1 cup fresh or frozen blackberries (make sure they are not thawed if using frozen berries)
For the Crumble Topping:
- 1/2 cup all-purpose flour
- 1/4 cup rolled oats
- 1/4 cup packed brown sugar
- 1/4 cup unsalted butter (cold, cubed)
- 1/4 tsp ground cinnamon
- Pinch of salt
These ingredients come together to create a cake that’s wonderfully rich, fluffy, and bursting with the flavors of the apples and blackberries. Don’t worry if you don’t have all the exact ingredients — there are plenty of substitutions that you can try. Now, let’s move on to the fun part: making this delicious cake!

How to Make (Full Measurements)
Making this Apple Blackberry Crumble Cake is straightforward and fun. Follow these steps to create a delicious, homemade treat that will impress your friends and family:
- Prepare the Oven and Pan: Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan or line it with parchment paper for easy removal after baking. This will ensure that your cake comes out smoothly and doesn’t stick to the pan.
- Make the Cake Batter: In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt. This is your dry mixture. Set it aside.In a separate bowl, beat the softened butter using an electric mixer until it’s light and fluffy, about 2 minutes. Add the eggs, one at a time, beating well after each addition. Stir in the vanilla extract.Gradually add the dry mixture to the wet mixture, alternating with the milk. Start with a little dry mixture, then add some milk, and continue until everything is combined. This method helps to keep the batter smooth and free of lumps.
- Add the Fruit: Gently fold in the chopped apples and blackberries. Be careful not to break the blackberries too much, as you want the fruit to remain visible in the batter. The fruit should be evenly distributed, giving the cake a burst of flavor in every bite.
- Prepare the Crumble Topping: In a small bowl, combine the flour, oats, brown sugar, cinnamon, and a pinch of salt. Add the cold, cubed butter and use your fingers or a pastry cutter to rub the butter into the dry ingredients until the mixture resembles coarse crumbs. This will create the crumble topping for the cake.
- Assemble the Cake: Pour the cake batter into the prepared pan, spreading it evenly with a spatula. Sprinkle the crumble topping generously over the batter. The crumble will bake into a crunchy, golden topping while the cake beneath remains soft and moist.
- Bake: Bake the cake in the preheated oven for 45-50 minutes, or until a toothpick inserted into the center comes out clean. The cake should be golden brown on top, and the crumble should be crisp.
- Cool: Allow the cake to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely. This will help it set and make it easier to slice.

Serving and Storage Tips
Once your apple blackberry crumble cake has cooled and is ready to serve, there are a few tips to help you enjoy it at its best:
- Serving: This cake is delicious on its own, but you can elevate it even further with a scoop of vanilla ice cream or a dollop of freshly whipped cream. For a lighter option, serve it with a dusting of powdered sugar or a drizzle of honey. You can also enjoy it with a hot beverage like coffee, tea, or even a refreshing iced drink for a perfect dessert experience.If you want to make it more indulgent, top the cake with extra blackberries or a sprinkle of cinnamon and sugar. You can also serve it warm, straight out of the oven, for a cozy, comforting treat.
- Storage: To store leftover cake, cover it loosely with plastic wrap or place it in an airtight container. The cake will keep well at room temperature for 2-3 days. If you want to keep it longer, you can refrigerate it for up to 5 days. Before serving, you can warm it up slightly in the microwave or oven for a few minutes to bring back the fresh, just-baked flavor.
- Freezing: If you want to freeze the cake for later, wrap it tightly in plastic wrap and then place it in a freezer-safe container or bag. It can be frozen for up to 2-3 months. When you’re ready to enjoy it, allow the cake to thaw at room temperature or reheat it in the oven. Just be sure to let it cool before cutting.

Mistakes to Avoid for Apple Blackberry Crumble Cake
When making this apple blackberry crumble cake, there are a few common mistakes that could affect the outcome. Here’s what you should avoid to ensure your cake turns out perfectly:
- Overmixing the Batter: While it’s important to combine your wet and dry ingredients, overmixing the batter can lead to a dense, tough cake. Once the flour mixture is incorporated, stop mixing. The batter should be just combined, with a few lumps still visible. Overmixing can develop the gluten too much, resulting in a less fluffy cake.
- Not Using Room Temperature Ingredients: Using cold butter or eggs can interfere with the texture of the batter. Room temperature butter incorporates better into the sugar, creating a light and fluffy cake. Similarly, room temperature eggs help to emulsify the batter, preventing it from separating. Make sure to take your butter and eggs out of the fridge ahead of time.
- Using Too Much Fruit: While it’s tempting to add more fruit for extra flavor, using too much apple or blackberry can make the cake soggy. Stick to the measurements provided in the recipe to maintain the right balance between the cake and the fruit. Too much fruit can also make it harder for the cake to bake evenly.
- Not Sifting Dry Ingredients: Sifting your dry ingredients, like flour, baking powder, and baking soda, ensures that everything is evenly distributed and helps avoid clumps. This simple step can help your cake rise more evenly and improve its texture.
- Skipping the Crumble Topping: The crumble topping is what gives this cake its signature crunch. Don’t skip this step, as it adds flavor, texture, and visual appeal. Ensure the crumble is made with cold butter to achieve the desired crumbly texture. A warm, melted butter mixture won’t give you the same result.
By avoiding these common pitfalls, you’ll be well on your way to baking a delicious and perfect apple blackberry crumble cake every time!

Tips and Tricks for Apple Blackberry Crumble Cake
If you’re looking to make the best apple blackberry crumble cake, here are some tips and tricks to take it to the next level:
- Use a Variety of Apples: While any variety of apple will work, using a mix of tart and sweet apples can elevate the flavor profile of your cake. Granny Smith apples are great for adding tartness, while sweeter varieties like Fuji or Gala can add a nice balance. This combination will create a more complex and flavorful cake.
- Add a Pinch of Nutmeg: For an extra layer of warmth, consider adding a pinch of freshly grated nutmeg to the cake batter or the crumble topping. Nutmeg pairs wonderfully with both apples and blackberries and can enhance the overall flavor.
- Make the Crumble Ahead of Time: If you’re short on time, you can prepare the crumble topping in advance. Store it in the refrigerator until you’re ready to use it. This will save you time during the preparation process and help the crumble stay cold, making it even more crumbly once baked.
- Substitute Non-Dairy Milk: For a dairy-free version, simply swap the whole milk for almond milk, oat milk, or any non-dairy milk of your choice. The cake will still be moist and delicious, with no compromise in flavor.
- Serve with a Warm Compote: If you want to add even more fruity goodness, serve the cake with a warm compote. Gently heat some fresh or frozen blackberries with a bit of honey and lemon juice until they become soft and syrupy. This can be drizzled over each slice for a burst of flavor.
By keeping these tips in mind, you’ll ensure your apple blackberry crumble cake turns out perfectly each time, impressing everyone who gets to taste it!

Suggestions
If you’re looking to mix things up or make your apple blackberry crumble cake even more exciting, here are a few suggestions you can try:
- Add a Nutty Twist: If you love the combination of fruit and nuts, consider adding some chopped nuts to the crumble topping or batter. Walnuts, almonds, or pecans work particularly well. You can add a handful of chopped nuts to the crumble topping to give it a crunchy texture and a nutty flavor that pairs beautifully with the fruit.
- Use Different Fruit Combinations: While apple and blackberry are a classic pairing, feel free to experiment with other fruits. Pears, strawberries, raspberries, or even peaches could all work beautifully in this recipe. You could also make a mixed berry crumble cake by using blueberries, raspberries, and strawberries in place of the blackberries.
- Serve with a Side of Yogurt: For a healthier spin, serve a slice of the cake with a dollop of Greek yogurt. The creamy texture of the yogurt complements the moist cake and adds a slightly tangy contrast to the sweetness of the fruit. It’s a great way to balance out the dessert while still keeping it indulgent.
- Add Spices for Extra Warmth: Spices like cinnamon, ginger, or even a dash of allspice can enhance the flavor of the cake. Try adding 1/4 teaspoon of ground cinnamon to the cake batter for a warm, cozy aroma that pairs well with the apples and blackberries. A sprinkle of cinnamon sugar on top of the crumble before baking adds an extra layer of sweetness and flavor.
- Create Mini Cakes: If you’re serving guests, consider making mini individual cakes instead of one large cake. Use a muffin tin or individual cake pans and bake for around 25-30 minutes. This makes for a fun presentation and gives everyone their own personal serving of crumble cake.
By experimenting with different fruit combinations, spices, and toppings, you can create a variety of delicious versions of this apple blackberry crumble cake that suits every occasion!

FAQ or Apple Blackberry Crumble Cake
To help you bake this cake with ease, here are some frequently asked questions and answers:
- Can I use frozen blackberries? Yes, you can use frozen blackberries in this recipe. However, make sure to add them directly to the batter while they are still frozen. Thawed berries can become mushy and might release too much liquid into the batter.
- Can I make the cake ahead of time? Absolutely! You can bake the cake a day ahead of time and store it at room temperature or in the fridge. If stored in the fridge, make sure to cover the cake to prevent it from drying out. When you’re ready to serve, reheat it gently in the oven for a few minutes to bring back the fresh-baked flavor.
- Can I use a different type of flour? Yes, you can substitute all-purpose flour with whole wheat flour or gluten-free flour, though the texture may vary slightly. Whole wheat flour will give the cake a denser texture, while gluten-free flour might require additional binding agents like xanthan gum to help with structure.
- Can I make the crumble topping without oats? Yes, if you prefer a gluten-free crumble or simply don’t like oats, you can substitute them with more all-purpose flour or ground almonds. The texture will change, but it will still create a delicious crumble topping.
- How can I make the cake less sweet? If you want a less sweet cake, reduce the amount of granulated sugar in the batter or substitute it with a natural sweetener like honey or maple syrup. You can also skip adding the extra sugar on top of the crumble.
These answers should help guide you through any questions you might have while preparing your apple blackberry crumble cake!

Conclusion for Apple Blackberry Crumble Cake
This Apple Blackberry Crumble Cake is the perfect combination of sweetness, warmth, and texture. The soft, fruity cake combined with the crunchy, buttery crumble topping is sure to become a favorite in your baking repertoire. Whether you’re serving it at a family gathering, as a weekend treat, or simply enjoying it with a cup of tea, this cake offers a delicious experience that’s both comforting and satisfying.
The versatility of this recipe also makes it easy to customize. You can play around with different fruit combinations, add nuts for an extra crunch, or serve it with a scoop of vanilla ice cream for a special touch. It’s a cake that can be adapted to suit any occasion or personal preference.
By following the tips and tricks provided, avoiding common mistakes, and using the helpful suggestions, you’re sure to bake a cake that will have everyone asking for the recipe. So, gather your ingredients, preheat the oven, and enjoy the process of creating this delightful dessert that’s bursting with fruity goodness and topped with the perfect crumble!