Preheat the oven to 180°C (160°C Fan, gas mark 4).
Place blackberries, sugar and lemon juice in a large baking dish and mix everything together. Set aside for later use.
500 g Blackberries, 2 tbsp Light Brown Sugar, ½ Lemon Juice
In a large mixing bowl, combine flour, oats, light brown sugar and cinnamon together.
200 g Plain Flour, 1 tsp Cinnamon, 50 g Oats, 100 g Light Brown Sugar
Add butter. Using the ‘rub-in-method’, use your fingertips to combine the butter and flour mixture together until it resembles crumbs. Use the palms of your hands to help to form clumps If you like bigger pieces on top.
130 g Butter
Spread the crumble mixture over the blackberries then bake it in the oven for 45 minutes or until the crumble topping turns golden-brown.
Video
Notes
Extra Notes
When squeezing the lemon juice, make sure to catch any lemon pips that could potentially drop into the dish.If the blackberries you're using are not overly ripe, you can try squishing around a quarter to half of the blackberries to help the liquids draw out.