Preheat oven to 200oC /180oC fan- forced. Prick sweet potato all over with a small sharp knife. Place two sweet potatoes in a heatproof bowl. Cover with cling film and microwave for 4 minutes. Turn and cook for further 4 minutes. Repeat with remaining sweet potatoes.
Place sweet potato on a lined oven tray. Drizzle with oil and bake for 25-30 minutes until very tender and golden.
Combine kale, cabbage, carrot and onion in a bowl.
Split the sweet potato down the centre with a sharp knife and ease open. Divide slaw and pork between potato. Blend or process aioli and chillies until smooth. Drizzle over pork.