1. place all ingredients in a bowl and mix well to combine.
2. spread mixture thinly on a parchment or greaseproof paper until about 2mm thick.
3. place parchment paper on a baking tray and bake in a preheated oven of 120 deg c for 10 mins.
4. turn up the oven heat to 180 deg c and bake for 20-30 mins, flipping over the other side at the last 10 mins. keep a close watch as it may burn during this stage.
5. cool completely before serving or storing.