A rich pastry base topped with a tart blackberry jam and a crispy, buttery crumble topping. What more could you want? Perfect for sharing, these blackberry bars will be a hit at any summer event!
Servings 12slices
Prep Time 30 minutesmins
Cook Time 20 minutesmins
Chilling time 30 minutesmins
Total Time 1 hourhr20 minutesmins
Ingredients
PASTRY
300gramsflour
200gramsunsalted butter, cold
50gramspowdered sugar
1large egg
1/2tspvanilla extract
1/4tspsalt
FILLING
350gramsblackberries
150gramsgranulated sugar
Pinch of salt
1tbsplemon juice
Lemon zest from 1 lemon(optional)
1tbspcornstarch
1tbsp water
CRUMBLE TOPPING
120gramsflour
50gramsbrown sugar
50gramsgranulated sugar
1/4tspsalt
70gramsbutter, melted
100gramswhole blackberries(for sprinkling on the top)
Start by making the blackberry filling. Add blackberries, sugar, lemon zest, and lemon juice to a small pot.
Place on the stove and heat over medium to low heat. Cook for around 10 minutes, until the blackberries have burst and released their liquid.
Dissolve 1 tbsp of cornstarch in 1 tbsp of water and add to the blackberry mixture. This should thicken up as it reaches boiling point.
Once it has reached a jammy consistency, remove from the heat and let cool. Place in the fridge to chill down even faster.
PASTRY BASE
Combine flour, powdered sugar, and salt in a food processor and pulse to combine. If you don’t have a food processor, you can also do this by hand in a bowl.
Add cold butter and pulse in the food processor until it looks like sand. If doing this by hand, just break up the cold butter with your fingers and crumble until you reach a sand-like consistency.
Add egg and vanilla extract and pulse until the dough starts to come together. If working by hand, add to your bowl, mix to distribute, and gently press together until your dough forms a ball.
Wrap the dough in plastic wrap and refrigerate for at least 30 minutes.
CRUMBLE TOPPING
Combine flour, brown sugar, granulated sugar, and salt in a bowl.
Pour over melted butter.
Mix together with a spoon until it starts to clump together. You want various sizes of crumbles, so don't mix it too much, but you don't want any of it to be dry.
When done mixing, set aside until ready to roll out the pastry base.
ASSEMBLY
Preheat your oven to 375 degrees F (190 C). Line a baking sheet with parchment paper.
Roll out the pastry base of your dough to a rough rectangle about 1/4" thick, and around the size of a half sheet baking pan.
Trim the edges of the pastry base to get an even rectangle. You can save the scraps to use for other shortcrust pastry purposes!
Transfer the pastry base to the baking sheet.
Spread the blackberry filling over the top.
Add the crumble topping over the blackberry filling.
Add extra blackberries over the top - they can be whole or cut into smaller pieces! This is optional if you want to skip this step.
Bake for 15-20 minutes until the edges of the pastry are golden and the crumble topping is golden as well.