STEP 1

Pour half of the olive oil into the slow cooker and put the onions and crushed garlic on top. Slice the aubergines into 1cm thick slices lengthways and brush with the remaining olive oil. Put them into the slow cooker on top of the onions and nestle the tomatoes, fennel slices and sundried tomatoes in and around the aubergines. Sprinkle the coriander seeds over the top then season everything well with salt and pepper.