Blackberry crumble bars are the perfect combination of sweet and tart, offering a delightful treat that’s as comforting as it is delicious. These bars make for an ideal dessert or snack, combining juicy blackberries with a crispy, buttery crumble that’s sure to please everyone in the family. The best part? This recipe is incredibly easy to follow, making it perfect for both experienced bakers and beginners alike. With a simple step-by-step guide, you’ll have a delicious batch of blackberry crumble bars ready to enjoy in no time.

Ingredients

To create the mouthwatering blackberry crumble bars, you’ll need to gather a few key ingredients that bring a wonderful blend of flavors and textures:

180 g / 6.3 oz vegan butter – This creamy butter provides a rich base for your crumble, ensuring it’s decadently buttery without any dairy.
250 g / 2 cups plain flour (or GF flour mix) – The foundation of your bars, this flour gives the crumble its structure and crumbly texture.
1½ tsp cinnamon – This aromatic spice warms up the flavor, making these bars comforting and inviting.
Scant ½ tsp cardamom – Adding a hint of warmth and sweetness, cardamom elevates the flavor profile beautifully.
½ tsp fine salt – A pinch of salt enhances all the other flavors while balancing the sweetness.
1 tsp baking powder – This leavening agent helps create a lovely light texture.
90 g / 1 cup large rolled oats – The oats add a nutty crunch that complements the tender crumble.
150 g / ¾ cup sugar – For sweetness, light brown sugar gives a caramel-like note (you can also use coconut sugar for a healthier option).
450 g / 16 oz ripe blackberries – These juicy, plump berries are the star of the show, adding a burst of flavor and a vibrant color.
2 tbsp / 16 g plain flour – This helps thicken the blackberry filling.
Zest of 1 lemon + 2 tbsp juice – The zest and juice bring brightness to the filling, perfectly balancing the sweetness of the blackberries.
75 g / 6 tbsp sugar – This sugar sweetens the blackberry mix, harmonizing all the components.
2 tsp vanilla extract – The vanilla adds warmth and depth, rounding out the flavor.

Step-by-Step Directions

Let’s dive into making these delightful blackberry crumble bars!

Preheat the Oven: Begin by preheating your oven to 180° C / 355° F (or 160° C / 320° F if using a fan setting). Next, line a 20 cm / 8" square tin with baking paper, which will prevent the bars from sticking.
Prepare the Butter: To start, place the vegan butter in the freezer for about 10 minutes. This helps it chill, making it easier to incorporate into the dry ingredients.
Mix Dry Ingredients: Grate the chilled butter coarsely or cut it into small cubes. In a mixing bowl (or using a food processor), combine the flour, cinnamon, cardamom, salt, baking powder, oats, and 150 g / ¾ cup sugar.
Combine Butter and Dry Mix: Add the grated butter to the dry ingredients and use a pastry cutter (or two knives) to cut it in until the mixture resembles coarse pebbles. It should stick together when squeezed in your hand.
Press the Base: Take just under two-thirds of the crumble mixture and press it firmly into the base of the lined baking tin. This will form the crust for your bars.
Bake the Base: Place the base in the preheated oven and bake for 15 minutes, while you prepare the blackberry filling.
Make the Filling: In a medium-sized pot, combine the blackberries, 2 tbsp flour, lemon zest, lemon juice, 75 g / 6 tbsp sugar, and vanilla extract. Set it on a low flame and gently simmer, stirring occasionally until the mixture starts to bubble. Allow it to bubble for about a minute before removing it from the heat.
Assemble the Bars: Once the base is done baking, spread the blackberry filling evenly over the crust. Then, sprinkle the remaining crumble mixture over the top.
Bake Again: Return the tin to the oven and bake for an additional 30 minutes or until the top is golden brown and the filling is bubbling.
Cool and Slice: Allow the bars to cool completely in the tin before cutting. For neater slices, refrigerate them overnight.

Tips & Tricks

Use Fresh Blackberries: Always opt for ripe and juicy blackberries for the best flavor. If fresh blackberries aren’t available, you can use frozen ones; just make sure they are well-drained before using.
Add Nuts: For a crunchier texture, consider folding in some chopped nuts like walnuts or pecans into the crumble mix.
Customize Flavors: Feel free to experiment with spices; adding nutmeg or allspice can complement the flavors wonderfully.

Serving Suggestions & Pairings

These blackberry crumble bars are delightful as-is but can be elevated further. Serve them warm, topped with a scoop of dairy-free vanilla ice cream or a dollop of whipped coconut cream for a heavenly dessert. They’re perfect for a summer picnic, a family gathering, or as an afternoon snack with a cup of tea or coffee. Pair them with fresh mint leaves for a pop of color and flavor on your dessert platter.

Nutritional Information

On average, each bar contains approximately 180 calories. The nutritional breakdown is approximately 7g fat, 25g carbohydrates, 2g protein, and 4g fiber. Remember that balance is key; while these bars are a tasty indulgence, enjoy them in moderation as part of a varied diet.

Storing Tips & Variations

To store your blackberry crumble bars, place them in an airtight container at room temperature for up to three days or refrigerate for a week. You can also freeze the bars; wrap each one individually in plastic wrap and store them in a freezer-safe bag for up to three months. When you’re ready to enjoy them, simply thaw at room temperature or warm in the oven. Variations could include using other berry types such as raspberries or blueberries to create a mixed berry crumble.

Conclusion

It’s time to roll up your sleeves and try making these delicious blackberry crumble bars! They’re a perfect treat for any occasion, and truly a wonderful way to enjoy the sweetness of fresh blackberries. Don’t hesitate to share your baking adventure and results with friends and family; I’d love to hear how your bars turned out!

FAQs

1. Can I use frozen blackberries instead of fresh?
Yes, you can substitute frozen blackberries for fresh ones. Just make sure to thaw and drain them properly to prevent excess moisture in the filling.

2. Can I make these bars gluten-free?
Absolutely! Simply substitute plain flour with a gluten-free flour mix and ensure your oats are certified gluten-free.

3. How do I cut the bars neatly?
To achieve clean slices, allow the bars to cool completely. For the best result, refrigerating them overnight makes them firmer and easier to cut.

4. How long do these bars last?
Stored in an airtight container, these bars will last up to three days at room temperature, a week in the refrigerator, or three months in the freezer.

5. Can I make them vegan?
Yes! The recipe already calls for vegan butter and does not contain any other animal products. Enjoy them guilt-free!

Blackberry Crumble Bars

These blackberry crumble bars combine juicy blackberries with a crispy, buttery crumble, making for a delightful treat that is both comforting and delicious.

Print Recipe Pin Recipe

Prep Time 30

Cook Time 45

Total Time 1 15

Course Dessert, Snack

Cuisine American

Servings 9 bars

Calories 180 kcal

Ingredients

For the crumble base

180 g vegan butter Provides a rich base for the crumble.
250 g plain flour (or GF flour mix) The foundation of the bars.
1.5 tsp cinnamon Adds warmth to the flavor.
0.5 tsp cardamom Elevates the flavor profile.
0.5 tsp fine salt Enhances flavors.
1 tsp baking powder Helps create a light texture.
90 g large rolled oats Adds crunch.
150 g sugar Light brown sugar gives a caramel-like note.

For the blackberry filling

450 g ripe blackberries Star of the recipe.
2 tbsp plain flour Thickens the filling.
1 zest lemon Brings brightness.
2 tbsp lemon juice Balances sweetness.
75 g sugar Sweetens the blackberry mix.
2 tsp vanilla extract Adds warmth and depth.

Instructions

Preparation

Preheat your oven to 180° C / 355° F (or 160° C / 320° F if using a fan setting) and line a 20 cm / 8 inch square tin with baking paper.
Place the vegan butter in the freezer for about 10 minutes.
Grate the chilled butter coarsely or cut it into small cubes, and combine it in a mixing bowl with the flour, cinnamon, cardamom, salt, baking powder, oats, and 150 g sugar.
Add the grated butter and use a pastry cutter to mix until it resembles coarse pebbles.
Press just under two-thirds of the crumble mixture into the base of the lined baking tin.

Baking

Bake the base in the preheated oven for 15 minutes.
In a medium-sized pot, combine the blackberries, 2 tbsp flour, lemon zest, lemon juice, 75 g sugar, and vanilla extract. Simmer gently until bubbling, about 1 minute, and then remove from heat.
Spread the blackberry filling evenly over the baked crust and sprinkle the remaining crumble mixture over the top.
Return to the oven and bake for an additional 30 minutes until golden brown and bubbling.