Mix everything together in a bowl until it forms a soft, but not sticky dough, adding water as needed. Cover the bowl and leave in a warm spot for 20 minutes. Dump into a lightly greased 900lb (2l) loaf tin and leave for another 20 minutes while you preheat the oven to 200C/400F/gas 6. Sprinkle with some extra oats if you like. Bake for 45-50 minutes, then allow to cool before cutting.