Step #1 put blackberries in a sieve & pour over boiling water.
Step #2 put the blackberries & sliced apples into a dish, sprinkle with 1 tbsp of brown sugar & 1 tsp cinnamon & bake this at 180C while preparing the crumble.
Step #3 Mix the rest of the ingredients until crumbly.
Step #4 Remove fruit from the oven & put crumble mix on top.