Preheat the oven to 200˚C and line a baking tray with baking paper. Peel (optional) and grate the potatoes, we used a food processor to grate ours, and then squeeze the water out of the grated potatoes in a tea towel or cheese cloth. Place the potato into a bowl and add the remaining ingredients, stirring well to mix everything. Place the potato hash in a thin layer (no more than 0.5 cm thick) on the baking tray, bake for 15 minutes on the bottom rack of your oven, then move to the top rack of the oven and bake for a further 10 minutes, do not stir or flip.