Method:
1. Preheat a fan oven to 175°C. Line a shallow baking tray/tin suitable for the batch. Dice the apple evenly and keep blackberries chilled/frozen until needed.
2. Mix wholemeal flour, plain flour, KWERKY, baking powder, bicarbonate and cinnamon/vanilla until evenly distributed.
3. Whisk egg, water, oil and sugar separately. Add to the dry mix and fold just until smooth with no visible dry flour.
4. Fold in the apple and blackberries gently. Spread into the prepared tray to an even depth, including the corners, and level the surface without compressing.
5. Bake for 35 minutes at 175°C fan, until set through the centre and lightly coloured. Confirm doneness with a clean skewer/probe before removal.
6. Cool completely in the tray/rack before cutting. Trim only if required, then cut into 10 equal portions and apply site cooling, storage, allergen and date-coding controls.
