Preheat oven to 180 degrees celsius fan-forced. Grease a large oven-proof baking dish (approx 18cm x 28cm) with butter and set aside.
Place peeled and thinly sliced apples into the TM bowl. Add water, sugar, cinnamon, nutmeg and lemon juice. Cook for 5 minutes, 90 degrees on Reverse, Speed 1.
Drain the excess liquid from the apples and spread into the prepared baking dish. Sprinkle the blackberries over the top.
Rinse and dry the TM bowl. Place the oats, flour, butter and sugar into the TM bowl. Press Turbo a few times until you have achieved a consistent crumble mixture (and all of the dry ingredients have been completely combined with the butter.
Sprinkle the crumble over the apple and berries and place into the preheated oven.
Cook for 35 minutes or until the crumble is golden and crunchy.